Hey Buddy! I should preface this comment by letting you know was blessed to be in a section of 10 guys out of a group of ~50 total for our classes. But for clinicals, I was the only guy in my lot of 8 students. At first, most the ladies did, as you say, gravitated towards each other and I was left to learn on my own. However, I found that by isolating and conversing with one individual at a time, to build rapport with, was effective in furthering my integration into their clique. So I guess I'm saying it helps to first befriend the lasses individually. And once you do, it is easier to be part of the collective group. Hope this helps! Cheers!