Basically, you go around the circle and introduce the person next to you as some wacky character and that person has to acceptand agree. For example:
Person A: This is Sunshine. She's a long-haul trucker.
Person B: I sure am! I like drivin' so much, I'm drivin' right now!
The kids seemed to love it, especially this one:
Youngest Kid: (gleefully thinking he's getting away with something) This is my friend Peter! He got bit by a radioactive spider!!"
New Kid: (completely deadpan) Yes. I'm hideously deformed now.