To be honest, some people might be accepting to your group and if your really cool you have a shot to integrate. Be casual, talk to everyone and get to know people. However initially people might be stand offish because of past experiences with jerks, excessively drunk or even IMO, when people become isolated and only associated with their "group". Personally I wouldn't come here with a bachelor party unless it was small and the Bachelorette party was there as well and willing to be uninhibited.
