Jet

Everyone sits around a table or in a circle. Let's use an example of 10 people.

You start by saying any number from 1-9. You can't say 10 because it comes back to you. So let's say you say 2. The second person clockwise from you has to say a number. He says 6. The sixth person clockwise from him has to say a number. And so it goes on.

Here is the fun part. You can use negatives. Let's say I say 4. The forth person clockwise from me says -4 and it now reverses back to me.

When you really get good you can play this game very fast and with your eyes closed. When someone messes up they take a forfiet.