In each of these instances, the individual, lacking the tacit approval of those in charge, was required to act in such a way as to suggest that his use of the setting was a legitimate one-he was required to act, in effect, as if he were in a public place.

DEFINE: This illustrates how individuals without tacit approval must 'perform' legitimacy, an informal rule distinguishing public from private/semi-private settings.

Lyn H. Lofland, World of Strangers_ Order a…, loc. 747