I see no problem with it whatsoever. I'm thoroughly straight, and don;t check out guys, but if one of my friends, say, gets a haicut or looks sharp while trying to go out for the evening, I'll give him my opinion on how he looks. If a girl asks me if I think a guy is good looking, I can give the best opinion I can as someone who isn;t attracted to guys. Plus, there' also a general sense of what makes a person look good, regardless of sexuality, so if you're comfortable with yourself, you should be able to judge whether or not a person is good looking. But, since I don;t go out looking at guys, I never think to myself "That's a sharp looking guy... etc etc." But, the question is if it sounds gay for a guy to give another guy a compliment. How many guys have been in a club dancing, and saw someone who's a really good dancer? I've had people of both sexes tell me I'm a good dancer. It's a compliment, and when guys say it, it doesn't sound gay. What about if you're wearing a cool or amusing shirt, and someone compliments you on it? It doesn;t sound like you're being hit on. So my answer is, if you're comfortable with yourself, you should be able to give and take compliments with ease. A compliment is a compliment, and if you're that worried about sounding gay, then maybe you should take the time to sit down and reevaluate how comfortable you actually are with your sexuality.