A performer may be taken in by his own act, convinced at the moment that the impression of reality which he fosters is the one and only reality. In such cases we have a sense in which the performer comes to be his own audience; he comes to be performer and observer of the same show. Presumably he introcepts or incorporates the standards he attempts to maintain in the presence of others so that even in their absence his conscience requires him to act in a socially proper way.
Erving GoffmanAll the world is not, of course, a stage, but the crucial ways in which it isnโt are not easy to specify
Erving GoffmanAnd to the degree that the individual maintains a show before others that he himself does not believe, he can come to experience a special kind of alienation from self and a special kind of wariness of others.
Erving Goffman