Hey man, im in the exact same boat as you.. the residence building im living in has a group and everything, although mine does have a bunch of HB 8+'s. My best advice to you is to just keep your distance for now and be friendly in general in the group, dont add any of them as friends yet or try to initiate contact over FB. Wait until you see them all in person during O-week, at which point introduce yourself and come off as someone who's friendly, and someone who they WANT TO MEET. Think about it like this, picture yourself as an HB 8 who gets guys staring at her all the time.. College is all about opening up and meeting many new people, so shes deffinately gunna get tonnes of AFC guys trying to meet her, SET YOURSELF APART FROM THEM. Demonstrate Higher Value by being an outgoing individual when you first meet everyone. Above all, you want to make an impression that will get people wanting to be introduced to you, and this will make it ten times easier to game them once youve met all your new lady friends
Best of luck
-Ric