The author examined three questions: (a) What constitutes participants' causal attributions for the labels "gay," "lesbian," and "homosexual"?; (b) Do participants' attitudes vary by labels?; and (c) Do participants' attitudes vary with previous social contact with homosexuals? Participants were 334 university students (140 women, 194 men). Three labels—"gay," "lesbian," and "homosexual"—served as probes. The author investigated participants' attributions toward causes of homosexuality with Principal-Component Analysis (PCA) and obtained 4 components: disorder, problems, modeling or sensation seeking, and preference. The author found the most negative attitudes toward the label "gay." Finally, participants who had previous contact with homosexual people held more positive attitudes toward homosexuality than did the others. The author also obtained some gender differences. The author discussed the results in the light of the current literature.