LOL - I personally love to hear stories like this because my DS is DEFINITELY like this, and my daughter has become more like this as she has lost some of her mommma cling and some residual toddler shyness. They can both be very silly and goofy. They love to make people laugh and a crowd brings it out best.
We have a group of a few friends with GT boys DS's age. When they were younger there were 2 boys that always got kudos for their maturity and poise. We were out with all the boys and these 2 guys were stand outs because they weren't that silly and would be chatting with the adults. Both these boys are very comfortably MG. DS is the HG-PG kid with a wild sense of humor and chameleon skills. DS will surprise people if they get him alone. I've gotten cornered a few times after DS had a one-on-one conversation with an adult who hadn't spoke to him one on one before.
If you think about it, these people skills will definitely serve them well as adults. I tell myself that all the time when one of my kids is embarrassing me.
