be disturbed. "Man seeth" is the person's nature. A large public space are existing "the man seeth" phenomenon: the viewer consciously or unconsciously observation, in the space in front of the all activities. At the same time, some of the people with strong performance desire, in public space in various activities to attract the attention of others, so as to achieve self-fulfillment cheerful. The seemingly simple "man seeth" phenomenon, but can promote space more activities production. For example, for a walk of pedestrians may be busy street performance and to join the ranks of the show attracts, with the strange because the audience is the sight of the activities of the wonderful and short conversation, art lovers of the infection by environmental atmosphere began to sketch activities.