Precocious or just confident?

He is going to go into adulthood with that invaluable skill of being able to network, politely and kindly.

I could have moved mountains had I that skill, but I don't.

What a fine young gentleman he is.

Your other son is way wrong; he's not being precarious at all, just being a thoroughly decent and thoughtful young man.

Good on him, is what I say, and why wasn't your other son so kind?!

Precocious means showing maturity, literally translated as “ripening early”
I would say this child is precocious as very few 11 year olds do show such behaviour.
Your S was not kind as it is your GS’s nature but some adults don’t understand and see it as showing off.

i think it is lovely. at parties, weddings etc i always sit and wonder who's child is who's. i should think at such a time it helps to 'lighten' things. my baby who was only a few months old certainly helped helped lighten things at my Uncles funeral, even if she was passed like a box of chocs!
two of my grandchildren the girls are like this and i think it is lovely. i am sure your grandson will go far

Just confident and outgoing, which surely can only be a good thing.

My Gds (10) is similar. He will honestly just go up to anyone and start chatting - he is lucky to have a very engaging way with him. IMO it’s a great gift to be born with.

I agree with Witzend great to have confidence like that. Strange isn't it how we make all sorts of excuses for a shy child but one who is outgoing and confident is criticised. I have no doubt he will have a great future in drama.