Participants are divided into groups of 3-5 and discuss what peaceful coexistence at school means for each of them. Following this, what has been discussed in each group is presented in a plenary session. The facilitator makes clear that all views should be heard and that there is no right and wrong ‘answers’ since everyone brings and shares something with the group. The facilitator writes down all the views heard in the plenary session on a large piece of cardboard. From this activity, a class “contract” can then emerge, with a commitment by all members of the class to communicate in the peaceful terms they have thought of. This activity can form the introduction to other activities related to the prevention and the confrontation of school violence and / or bullying as well as to further activities on effective and positive communication among group members.