Hmmm... I guess by observing the gathering from a detached perspective, you can decide who would most benefit from your attention. As in "the under dog."
I never like anyone to feel left out, or ganged up on.
I do this too irl. I tend to gravitate towards introverts a lot because of my tendency to do this. I feel very uncomfortable when I see someone being left out or left behind. Lol... one of my introverted friends (must be some sort of IxTx) once told me that she kind of likes this about me because I look out for her.. she says I remind her of a sheep herder..
as in, I look back a lot to check if anyone is lost if I'm with people, that sort of thing