"bro time" and guy friends

[Eli_]

Lately I've been finding myself really bummed out about the lack of guy time in my life.  I go to college at a school where all the dorms are gender neutral and frats and sports aren't a thing, so there aren't really any male-specific activities or spaces and I ended up with a lot of female friends.  The guys I am friends with are mostly only friends with girls and the few guys that I hang out with a lot.  My female friends are great, but I've always had a lot more male friends and really enjoy hanging out with just the guys.  Clubs, etc. aren't really much of a thing here either and so I'm having trouble finding opportunities to make more guy friends.  Just looking for some advice I guess on how to do it.  There are quite a few guys that I'm friendly with but not really friends, and I think most of my female friends are more social and kind of put in the effort at that stage to become more than just acquaintances.  I've never been a very outgoing guy, and most guys here seem pretty similar in that regard.  So, any advice on how to build some friendships with these guys as a kind of shy guy myself?

[DriftingCrow]

This might be relevant: are you stealth, or pass as male?

If you're over 21, why don't you ask the guys to go out for some beers? You don't need to be too social to have a drink and watch whatevers on the TV or sit at a table and talk about school.

Or, if that's not an option, just try to find out what they're into and see if that's something you're interested in and invite the guys for a guy night out doing whatever it is--indoor rock climbing gyms are fun. 

[Eli_]

I am stealth, though not 21 unfortunately (I agree that going out for beers would probably be among the easier approaches)
Climbing sounds like a good idea though.  There are some good gyms around here and, although it's not the most athletic bunch of guys here, I imagine some of them would be into that.