In the context of reciprocity theory (in which disclosure by one person elicits self-disclosure by another person), personal space preferences of three-, four-, and five-year-old children were examined. Equal numbers of each age group and sex (N=120) were either given or not given material rewards and were either touched or not touched by the experimenters. Results revealed that children chose to be closer after being given a material reward but the same was not true for touching. Consistent messages resulted in closer approach distances than inconsistent messages. It was concluded that children as young as age three recognize and use reciprocity theory in interpersonal relationships. (Author/TJ)