In this paper, the psychodrama warm-up process and the procedure of selecting a protagonist are reviewed. All consecutive steps which should be taken to prepare a group and its members to start a protagonist action are described as well as the aspects of a warm up time in view of individual needs of participants of psychodrama and of the group process. The concept of a starter is defined - an important factor, which plays a role during warm-up and often decides about further work with a group. The paper explains also the importance of a leader's own warm up and the influence it can have on the process of the psychodrama session. The author describes his own experience in working with a group using psychodrama method, and gives a practical review of its introduction.