So its easy to complement a girl, like for example calling them beautiful, commenting on what they are wearing or eyes. But my girlfriend was asking, "how do you complement a guy?"

how do you complement a guy?

I've found that some guys prefer it when you complement their MANLY stuff rather than tell them what beautifull eyes they've got.
Commenting on their musculature or their rugged features or how much you like their hair?

I think compliments are more of a women exclusive thing. I'd find it weird if my girlfriend complemented me...
I mean, I wouldn't mind it, but I don't know.

peoplke don't seem to compliment guys as much as girls. i think the only "compliment" i ever give a guy is "my goddd you're so talllll!"(something along those lines) or "i like your hat", but i'd say it to pretty much any guy and only genuinely/

Try play punching a guy in the chest and then going "oooh.." and prodding him there. They seem to like that.
Except if it's your brother ofcourse. If it's your brother you punch him in the chest and go "WHOA time to lay off the haribo!"

ooohh? i don't understand it?

sometimes i go up to my super skinny geeky friends and rub down their chest bones with my knuckles. i love it maaaan :/

Ive had complements about my clothes and physical features mostly. Muscles, eyes, height....etc. Also with me behaviors too, like if im on a roll with jokes or something.

girls often tell me that i am an obnoxioius asshole and a typical guy.

they always do so in a flirtacious manner however, so i think in some screwed up way this is a compliment.