sure, sometimes the masculine guys are hard to find. but there are subtle ways to figure those guys out....
if there's a guy that you're interested in, send signals that you want to spend time with him, smile a lot, make eye contact, just hang out.
a little bit of physical contact, even just brushing your arm past his, or patting him on the shoulder can be hints for him. see if he does the same back. if he's straight, these signs will go right over his head.