Hi everyone. I have recently started my training for Scuba with my father and brother and we are really enjoying it. We have memorized all the safety underwater hand signals and have used them in our contained dives, but we ran into a problem. My family is made of humor so we sometimes attempt to make jokes or do something silly under the water-like we may pretend there is a shark behind each other when obviously there isn't one in the pool-but we have no way of saying that was funny or showing that we are laughing. Have any of you out there figured out a hand signal that means "I'm Laughing" or "that's funny"? Also if any of you have another creative signal I'd love to hear it!