Fringie

someone who hangs around a lot of different groups, but is not affiliated with any of them. they will hold close relations to one or two people, but will not easily hang out with the entire group frequently. they could be seen walking from group to group often. keeping at the "fringe" of the group

Wasn't Sam just here?

yeah, he just left to talk to the goth kids.
UGH! I missed him at the Gamers' table too!

whatja expect? dude's a fringie.