Have you ever sat and watched a group of children playing on the playground? Can you spot the kids who seem popular and well liked? The kids whom everyone crowds around and who seem to know exactly what to do and say to gain the approval, acceptance, and attention of their peers? And can you spot the kids who hover on the outskirts of the activity? The kids who desperately want to be included in the fun, but instead look away, trying to pretend they don't care?