This is closely related to this question. However, that primarily deals with interactions at relatively controlled, private functions. This question is more focused on the feeding-frenzy style chaos ...
My little boy is 2½, and has never been very good at playing by himself. When we take him to play-groups he won't ever go more than a few feet away from us at any time; At a party last week, he ...
Is it OK for an adult to join or start a game with some unfamiliar children (if they don't object)?