Convergence is a warm up that focuses on listening, support, taking risks and getting a group in synch. The goal is to get two players to simultaneously say the same word without preparation. When it happens it is magical, however it can take a long time to happen.
Once the players are sitting on the couch one of them begins a repetitive activity. Encourage the players to contribute subtle motions combined with a quiet noise. Other players will mimic the activity and contribute their own repetitive actions to the group. The players create a fidgeting chorus line between themselves.