Teams have sort of become a much more frequent occurance over the past years. When I started.. there was S.T.A.T.... and... S.T.A.T...
I think that was it.
Everyone was spare change. That still exists. Don't feel intimidated by the groups, and NEVER feel you HAVE to join a team. Period. Everyone is super accomodating as long as you're not an idiot and you get absorbed into whatever groups are playing. Anyone that DOESN'T do so is the exception, and they usually aren't round very long.
Just GO man! You'll see!