NV THEATRE is an international project developing competencies to communicate in a nonviolent way – acknowledging own and others’ needs, recognising and expressing emotions, building peaceful relations with young people, and co-workers. The aim of the project is to prepare youth leaders, trainers, project coordinators, to deal with situations of conflict or misunderstanding in their work environment, where reaching a compromise is needed for common good and growth. As much as conflicts are natural for human relations, our concern is not to let them threaten the basic sense of safety, when a person feels their needs are endangered, which might lead to violent defensive reactions. Those competencies to be in contact with own needs, and communicate them to others, are especially valuable working with multinational and cross-cultural groups, youth at risk, migrants, where backgrounds, contexts and understandings, which are shaping the strategies to meet the needs, might be so different from one another, thus leading to in the communication process and coexistence. We ask questions: Which are the resources of a youth worker to live peace and build a peaceful community? Which communication strategies work when acting in a conflict situation towards a peaceful and constructive solution?