How to act or look more like a guy? Cuz others think I'm gay or something?

Well u don't sound gay to me. Sometimes its not the looks the give off that vibe. Do u dress wear or say weird commons that can make it sound like ur gay? Those are the only way most people judge. Sometimes what gives u off as a "man" is talking about girls believe it or not. If u talk about the girl u ike or comment of a girl u just saw might help. Sometimes the best choice is being serious and saying it clear "I'm not gay". But u shouldn't care what others think except of course the girl u like.