I don't know if this helps (since I'm a Male), but if a guy really likes you, look for certain signs such as:
You really can't. Most boys you can tell if their faking it or not depending on how they act. But, no one is what they seem to be on Facebook. You just have to think: If you want to think that this guy likes you likes you then go for it. If you want a nonfacebook BF, then just give up the chase
You would be a fool to believe it unless you really are in love with him.Not necessarily. He could be lying, or joking but he could really mean it. If hes friends with the guy he says like you then he is more likely telling the truth. The guy who likes you could of asked him to tell you or maybe the guy who likes you is to nervous to tell you. There are loads of reasons why a guy would tell you that another guy likes you. Personally i wouldn't do anything about it and if the guy really does like you he will tell you himself.
he will flirt with you and give you signs that he likes you .. :D
If a guy truest you enough to tell you his feelings that means he really likes you.
If a guy likes you he'll smile when you tell him, and he might be looking at other things, like look at things really fast
Really you can't tell, you have to ask him.
You ask him :)
he doesnt
Tell the person
there really is no for sure way to tell, but if hes nice pays you compliments, and is really just a nice guy
Just tell him
It somtimes sounds gay, but I think they're faking it to be kewl plus the guy likes his voice really high wich he should stop but there not gay