Why might citizens adopt exaggerated public antagonism toward outgroups? When this is so, how much do public and private attitudes diverge? I argue that expanding exclusionary rhetoric against outgroups can create social pressures that incentivize ordinary citizens to adopt bigoted attitudes to avoid ostracism from their own majority community. Based on an investigation of Egypt during the Arab Spring, I identify the emergence and diffusion of a norm of discrimination against the country’s tiny Shi’a population. Under these conditions, a substantial portion of Sunni citizens adopted and countenanced anti-Shi’a bigotry not because they truly believed it, but rather because they feared the consequences of expressing public support for coexistence. A variety of qualitative evidence traces the growth of anti-Shi’s sentiment during this period, while original survey data show that over 80 percent of Sunni respondents openly expressed anti-Shi’a attitudes. Yet when asked about their attitudes via an item count technique, a method that grants a reprieve from social pressures, the percentage of respondents expressing discriminatory views toward the Shi’a dropped to just over 40 percent. One implication is that secretarian attitudes in the region are as much the product of malleable social and political pressures as deeply rooted preferences.