
477 S.E.2d 750 (1996)
23 Va. App. 412
Keith BYNUM
v.
COMMONWEALTH of Virginia.
Record No. 2154-95-1.
Court of Appeals of Virginia, Norfolk.
November 12, 1996.
*751 Melinda R. Glaubke, Norfolk, for appellant.
John Byrum, Assistant Attorney General (James S. Gilmore, III, Attorney General; Daniel J. Munroe, Assistant Attorney General, on brief), for appellee.
Present: WILLIS, BRAY and OVERTON, JJ.
BRAY, Judge.
Keith Bynum (defendant) was convicted in a bench trial for receiving stolen property in violation of Code § 18.2-108. Defendant complains on appeal (1) that the trial court erroneously declined to suppress evidence resulting from an unlawful search, and (2) that the evidence was insufficient to support the conviction. We disagree and affirm the decision.
In accordance with well established principles, we consider the sufficiency of the evidence to support a criminal conviction upon a review of the record
in the light most favorable to the Commonwealth, granting to it all reasonable inferences fairly deducible therefrom. The judgment of a trial court sitting without a jury is entitled to the same weight as a jury verdict and will not be set aside unless it appears from the evidence that the judgment is plainly wrong or without evidence to support it.
Martin v. Commonwealth, 4 Va.App. 438, 443, 358 S.E.2d 415, 418 (1987) (citing Code § 8.01-680). "The weight which should be given to evidence and whether the testimony of a witness is credible are questions which the fact finder must decide." Bridgeman v. Commonwealth, 3 Va.App. 523, 528, 351 S.E.2d 598, 601 (1986).
*752 We similarly review a trial court's ruling on a suppression motion, assessing the evidence in the "light most favorable to ... the prevailing party below," the Commonwealth in this instance, and the decision of the trial judge will be disturbed only if plainly wrong. Commonwealth v. Grimstead, 12 Va.App. 1066, 1067, 407 S.E.2d 47, 48 (1991). Our consideration of the record includes evidence adduced at both the trial and the suppression hearing, if any. DePriest v. Commonwealth, 4 Va.App. 577, 583, 359 S.E.2d 540, 542-43 (1987), cert. denied, 488 U.S. 985, 109 S.Ct. 541, 102 L.Ed.2d 571 (1988). To prevail on appeal, the defendant must "show ... that the denial of [his] motion... constitute[d] reversible error." Motley v. Commonwealth, 17 Va.App. 439, 440-41, 437 S.E.2d 232, 233 (1993).
During the early morning hours on February 8, 1995, Virginia Beach police executed a search warrant for a local motel room. Uniformed Officers Sean Coerse and Steven Bishard were assigned to watch from inside and prevent unauthorized persons from entering the room. While the search was underway, Coerse observed defendant and two women approach the door. When Coerse opened the door, defendant "immediately turned around and began walking away." Aware of suspected narcotics activity at the motel, Coerse decided to "get a conversation going with [defendant]," hoping to gain "consent to search his person."
Coerse called to defendant and asked "if [he] could help him." Defendant "stopped[,]... turned ... around," and answered that "he had come to visit ... people ... in the room." Coerse had seen no vehicle arrive at the motel and, after further inquiry, defendant explained that the three had been "dropped off." Defendant laughingly denied involvement in narcotics trafficking and acceded to Coerse's request to search his person, "plac[ing] his hands up on the wall." Because Coerse was "searching for narcotics and specifically crack cocaine," a "very small item," he "stuck [his] hands in [defendant's] pockets and removed the contents," without objection from defendant. Coerse discovered a "Toyota car key" in a trouser pocket and remarked to defendant, "I thought ... you didn't drive here." Defendant responded that he had found the key on the ground immediately in front of the motel room door and voiced "[n]o problem" with police keeping the key.
Coerse passed the key to Officer Bishard, and Bishard proceeded to a parking area located at the rear of the motel. Finding a Toyota automobile with its engine still "warm," Bishard ran a "status check" and learned that the vehicle had been reported stolen the preceding day. Coerse immediately located defendant, then seated on a nearby bench, and confronted him with Bishard's findings. Defendant denied knowledge of the offense and was released by police after completion of a "field interview card."[1] Following discovery of defendant's fingerprints on the automobile, he was arrested several days later. During subsequent police interrogation, defendant admitted possessing the stolen vehicle at the motel, claiming that "crack fiends" oftentimes allowed him to use their vehicles in exchange for cocaine.

SUPPRESSION OF EVIDENCE
Defendant first argues that he consented to a search only for drugs and that Coerse "exceeded the scope" of such consent when he "seize[d] the [car] key, ... ask[ed] any questions or [took] further action regarding that key."
"The constitutional guarantee which defendant invokes secures citizens in their persons and property against unreasonable seizures." Greene v. Commonwealth, 17 Va.App. 606, 610, 440 S.E.2d 138, 140 (1994).
However, "[t]he purpose of the Fourth Amendment is not to eliminate all contact between the police and the citizenry, but `to prevent arbitrary and oppressive interference by enforcement officials with the privacy and personal security of individuals.' As long as the person to whom questions are put remains free to disregard the *753 questions and walk away, there has been no intrusion upon that person's liberty or privacy as would under the Constitution require some particularized and objective justification."
Id. (quoting United States v. Mendenhall, 446 U.S. 544, 553-54, 100 S.Ct. 1870, 1877, 64 L.Ed.2d 497 (1980)). "Voluntarily responding to a police request, which most citizens will do, does not negate `the consensual nature of the response.'" Grinton v. Commonwealth, 14 Va.App. 846, 849, 419 S.E.2d 860, 862 (1992) (quoting I.N.S. v. Delgado, 466 U.S. 210, 216, 104 S.Ct. 1758, 1762, 80 L.Ed.2d 247 (1984)). Thus, a police/citizen encounter and related exchange remain consensual and without Fourth Amendment implications "as long as `a reasonable person would understand that he or she could refuse to cooperate.'" Lawrence v. Commonwealth, 17 Va.App. 140, 144, 435 S.E.2d 591, 593 (1993) (quoting United States v. Wilson, 953 F.2d 116, 121 (4th Cir.1991)), aff'd. per curiam, 247 Va. 339, 443 S.E.2d 160 (1994).
Notwithstanding Coerse's motives, the initial encounter and attendant exchange between defendant and Officer Coerse were clearly voluntary, without suggestion of coercion or intimidation. Defendant willingly responded to the officer's inquiries, dismissed with a laugh any involvement with narcotics, and expressly agreed to a search of his person, placing his hands against the wall without prompting by Coerse.
"A consensual search is reasonable if the search is within the scope of the consent given." Grinton v. Commonwealth, 14 Va.App. 846, 850, 419 S.E.2d 860, 862 (1992). The United States Supreme Court has articulated the standard for measuring the scope of an individual's consent under the Fourth Amendment to be "`objective' reasonablenesswhat would the typical person have understood by the exchange between the officer and the suspect?" Florida v. Jimeno, 500 U.S. 248, 251 [111 S.Ct. 1801, 1803-04, 114 L.Ed.2d 297] (1991). Furthermore, the Court stated that, "[t]he scope of a search is generally defined by its expressed object." Id.

Bolda v. Commonwealth, 15 Va.App. 315, 316-17, 423 S.E.2d 204, 205-06 (1992).
"A suspect may of course delimit as he chooses the scope of the search to which he consents. But if his consent would reasonably be understood to extend to a particular container, the Fourth Amendment provides no grounds for requiring a more explicit authorization." Lawrence, 17 Va.App. at 145, 435 S.E.2d at 594 (quoting Jimeno, 500 U.S. at 252, 111 S.Ct. at 1804). "The scope of [the] search may be further defined during the course of the search by the passive acquiescence of the person whose property is being searched." Grinton, 14 Va. App. at 851, 419 S.E.2d at 863; see also Lawrence, 17 Va.App. at 146, 435 S.E.2d at 594-95. Both the presence of consent to search and any related limitations are factual issues for the trial court to resolve after consideration of the attendant circumstances. See Limonja v. Commonwealth, 8 Va.App. 532, 540, 383 S.E.2d 476, 481 (1989) (en banc), cert. denied, 495 U.S. 905, 110 S.Ct. 1925, 109 L.Ed.2d 288 (1990).
In Lugar v. Commonwealth, 214 Va. 609, 611-12, 202 S.E.2d 894, 897 (1974), the Supreme Court restricted the scope of a consensual search for a fugitive to "a reasonable search of places [within an] apartment where [he] might hide." However, where the object may be more easily concealed, a search may properly assume much different parameters. For example, in a consensual search of an automobile for narcotics, police may search a container found within the vehicle, absent specific limitations to the contrary. Grinton, 14 Va.App. at 851, 419 S.E.2d at 862-63 (citing Jimeno, 500 U.S. at 251, 111 S.Ct. at 1803-04). While searching for coins, police may "look into every part of [a] building," as coins "might have been hidden in one or more boxes of diminutive size."[2]Blair v. Commonwealth, 225 Va. 483, 489, 303 S.E.2d 881, 886 (1983); see Beavers v. Commonwealth, 245 Va. 268, 275-76, 427 S.E.2d 411, 417, cert. denied, 510 U.S. 859, 114 S.Ct. 171, 126 L.Ed.2d 130 (1993).
*754 Officer Coerse was searching for crack cocaine, a small item subject to concealment in the "corner" of a pocket. In agreeing to the search, defendant understood its purpose and voiced no objection when Coerse conducted the search by emptying his pockets. Under such circumstances, the trial court correctly concluded that the search was reasonably conducted and within the scope of defendant's consent, both express and implied. Discovery of the key was clearly an incident of the consensual search and the related inquiries and investigation were merely a continuation of the voluntary encounter.

SUFFICIENCY OF THE EVIDENCE
Conviction of defendant for violation of Code § 18.2-108 required proof that the automobile was (1) previously stolen by another, and (2) received by defendant, (3) with knowledge of the theft, and (4) a dishonest intent. Starks v. Commonwealth, 225 Va. 48, 54, 301 S.E.2d 152, 156 (1983); see Code § 18.2-108. Defendant argues only that the Commonwealth's evidence failed to sufficiently establish his guilty knowledge. Manifestly, "[a]bsent proof of an admission against interest, such knowledge necessarily must be shown by circumstantial evidence.... `It is sufficiently shown if the circumstances proven are such as must have made or caused the recipient of stolen goods to believe they were stolen.'" Lewis v. Commonwealth, 225 Va. 497, 503, 303 S.E.2d 890, 893 (1983) (quoting Reaves v. Commonwealth, 192 Va. 443, 451, 65 S.E.2d 559, 564 (1951)).
The record discloses that defendant was found in possession of the stolen automobile within hours of its theft, falsely denied any connection to the vehicle, but later admitted acquiring it from a cocaine "fiend" in exchange for narcotics. Such evidence, together with the entire record, sufficiently established the guilty knowledge requisite to the conviction.
Accordingly, we affirm the judgment of the trial court.
Affirmed.
NOTES
[1]  The field interview included defendant's name, address, occupation, physical description, and photograph.
[2]  Although Blair arose under a search warrant, the scope of a search warrant defines the reasonableness of the attendant search as a defendant's consent defines the reasonable scope of a warrantless search. United States v. Dichiarinte, 445 F.2d 126, 129 n. 3 (7th Cir.1971).
