Although facial maturity has been repeatedly documented to influence first impressions, little is known about its impact on daily social experience. To address this, 114 people kept diaries of their social encounters for 1 week. Descriptions of a total of 5,106 interactions were collected. Baby-faced men reported less control and influence over opposite-sex interactions than did more mature-faced men. In addition, facial babyishness was positively related to the amount of intimacy and disclosure that characterized men's interactions. Facial maturity was not an especially strong predictor of women's social experience. Although mature-faced men were further revealed to be more extraverted than baby-faced men, the relations between facial maturity and social experience were independent of such personality differences.