The field of work that generated this dissertation is based on an ethnographic research conducted among students from a public school in Rio de Janeiro. It focuses on the configurations of the experimentation of the sexuality and the student movement, as well as its relations with the traditional institution, teachers, servants and technicians, and with the world beyond its walls. The central axis of this investigation was placed in the challenge to follow and understand the various ways to express themselves, to move and to assert itself through the gender performances, sexual practices and the first participatory trials construction of political action within school and in their relations with the reality of contemporary society. This dissertation is dedicated to describe before territorialities than identities, differences than diversity, singularities than totalities. We should point out the perception of the action as a multitude of other interwoven actions, updating what comes to be called the actor-network and operating concepts un-discernable, as society and the individual, nature and culture, human and non-human.