Although facial maturity has been repeatedly documented to influence f
irst impressions, little is known about its impact on daily social exp
erience. To address this, 114 people kept diaries of their social enco
unters for 1 week. Descriptions of a total of 5,106 interactions were
collected. Baby-faced men reported less control and influence over opp
osite-sex interactions than did more mature-faced men. In addition, fa
cial 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. Altho
ugh mature-faced men were further revealed to be more extraverted than
baby-faced men, the relations between facial maturity and social expe
rience were independent of such personality differences.