Human Bingo, people bingo, whatever you call it I’ve played it before. The same can be said for ball toss, and human knot.
Looking for new icebreaker ideas? Check out Teampedia at:
It’s the Wikipedia of icebreakers, energizers, etc., which means you can also contribute your favorite activities.
Another source more specific to teambuilding activities is:
What are your favorite sources for icebreakers, energizers, and teambuilders?