Theory and practice of theatre and performance are essentially connected to the spectator towards whom they are oriented while taking an active part in the performative event. The audience is not an obvious entity. The applied gaze upon the gaze will be examined through several points of view. We shall problematize the aesthetics and the politics of the gaze; we shall deal with the central role of the spectator in defining the medium and with the spatial location of theatre audiences as these are understood both historically and culturally; we shall discuss modes and central terms of mental participation; and we shall deal with questions and modes regarding ethical, perceptual, bodily (and others) spectator's roles while applying them to the options to "emancipate the spectator" through participatory models.