o audience has to be physically present for a performer to engage in this sort of selective concealment: a woman, home alone for the weekend, might scrub the baseboards and watch nature documentaries even though she’d rather trash the place, buy an eight ball, and have a Craigslist orgy. People often make faces, in private, in front of bathroom mirrors, to convince themselves of their own attractiveness. The “lively belief that an unseen audience is present,” Goffman writes, can have a significant effect.