In academic settings, Asian students are often described as less talkative than White students. We provide an account of this phenomenon based on research on cultural influences on the self, self-categorization, and implicit social cognition. We hypothesized that the classroom context activates a process of implicit self-stereotyping. Asian and White participants were asked to imagine themselves in a classroom or leisure context. Next, they completed Implicit Association Tests assessing their self-concept, ethnic stereotypes, and ethnic identification. In the classroom context only, ethnic stereotypes accounted for a more reserved self-concept among Asian participants and a more talkative self-concept among White participants.