To examine some of the consequences of crowding on human behavior, male or female groups of 8 college students (N = 192) were confined in a crowded (small) room or an uncrowded (large) room for either 5 or 20 min. During this period Ss discussed a series of "choice-dilemma" problems. Affective dependent measures revealed consistent Room Size * Sex of S interactions. Males rated themselves and others more positively in the uncrowded condition; females evaluated themselves and others more favorably in the crowded condition. Similarly, males tended to gaze at others' faces more often in the uncrowded room, while females tended to engage in more facial regard in the crowded room. (19 ref) (PsycINFO Database Record (c) 2016 APA, all rights reserved)