Seriously? I'd probably stare if there was some lil dooder just gettin' his groove on in the middle of a game too. I think it's creepier that you're implying there's creepiness to be had when...it's really a stretch armstrong, what you seem to be implying. It's the power of youth, Chino. THE POWER OF YOUTH! Also it doesn't look like he's looking directly at the kid, but given his smile I'm assuming he is...either way..
That man is probably just thinking "If only I had the bravery to get up and dance my heart out like that kid, I would be one of the cool kids".