Do I have a chance with this female friend? Opinions?

First met her 2 years ago, but we were both in relationships. I always thought she was pretty fun, nice and pretty. We lost touch for a year or so, but a facebook comment has reunited us and we've hung out like 3 or 4 times in the last week just doing outdoorsy stuff that we both enjoy. She has called me everytime to initiate it, and once to invite me to a ballgame because her friend was going with her b/f and she didn't want to be a third wheel (i couldnt go due to work however). One of the last times i saw her a few days ago, she made a comment about her outfit and was like "i thought you'd like that". She's been single for a year or so and I get the feeling she is looking. The only problem is, she sort of has a lot of guy friends, but I think she is just one of the guys with them, and im different and not part of that click. I might be starting to like her. Is it mutual you think? Do I stand a chance, and how do I proceed without making things awkward?