Everyone is free to move around as they like
As stated before, you have the right to move around as you like. If you feel you have landed in a situation from which you cannot learn anything or to which you cannot contribute anything: use your own two feet to walk to a more appropriate place. Feel free to walk around to look and discuss what is going on in other groups and join in when you like it. This way, participants take ideas and experiences from one group to another, which leads to cross-fertilization.