The elective didactic activities, (the student choice) in the regulation nursing degree corse represent an inviting formative moment for the students, since they can choose on the didactic fan proposed, the offer that most like and capture one own learning process. The proposal of the Role Playing session, active didactic methodology for excellence, since it favours the learning taking advantage of ludic analogy power, has consented, in the elective activities a ambit, with a lot of favour by nurse students that have lived in the simulation some emblematic situations of the clinical daily. The students group has focused theme attention on some ordinary situations in the hospital context performed by actorsstudents and they are analysed psychological mechanism, particularly as far as concerned the communication and the approach nurse-patient-patient relative: the behaviour mistakes perceived by oneself and somebody else, are become elements for discussions and new information for to acquire relationship competences.