1. Always try to break things up with games. They tend to bring out the quieter kids and generally activate the room.
2. Get the kids to explain their problems. My goal is to talk as little as possible and let the kids drive as much of the conversation.
3. Give them time to work on things. My instinct is to jump to a conclusion. I'm working on letting the process unfold in its own time.
4. Call on the kids rather than just letting them raise hands. I'd have four kids or so who'd dominate the room if I didn't actively try to get the others to speak.
Things I'm still contemplating.
1. Assigned seating. As you might predict I typically end up with two large tables. The boys on the right and the girls on the left. My thinking is that this is a club not school and its probably fine to let this be but I might experiment in the future with asking everyone to sit next to someone they don't usually sit by.