Anecdotal evidence suggests that sexual harassment may cause women to doubt their abilities, attributing their success to their professor's or supervisor's attraction to them rather than to their qualifications. Two experiments assessed whether a decrease in confidence could result from something as seemingly harmless as flirting. In Experiment 1, a male confederate posing as an advertising executive asked 56 female students to draw an advertisement, which he then praised. He behaved either flirtatiously or neutrally. In Experiment 2, female and male students interacted with a flirtatious or neutral advertisement executive of the other gender. In both experiments, women's self-creativity ratings decreased significantly more from pre-to posttest in the flirtatious condition than in the control condition. Men were affected less than women by the ad executive's flirtatiousness. The results suggest that flirtatiousness by an authority figure may have negative consequences for women's self-confidence.