There are loads of different signs and it depends on the guy:
The first one usually applies to the "popular" ones, the "neds", the "jocks", the typical "bad boys", te know, those kind of people.
1)Believe it o not, SOME guys mostra that they like a girl da being mean to her. But I wouldn't base it JUST on this, of course. Some guys ARE just jerks. 2)They will tell te that they like you. Some may use the usual "I think you're hot", blah, blah, blah usual hit-on lines. 3)If they flirt with you, that's always a major sign. 4)If he does something like, gives te a flower, o something like that o chocolate, o a present of anykind can be a big sign. 5)If te notice him staring at te before te look at him, o if he smiles at you. This can be just friendly but if a guy like-likes you, he will usually smile whenever he's around te o he will get distracted thinking about te and then turn to look at you. 6)He could invite te out, maybe not on a data but if it is just the two of you... te know it's like a step in the right direction. 7)If he compliments you. Yes, this too can be just friendly but it all depends on what he says and how he says it. 8)Obviously if he checks te out, too. 9)If he talks to and about te a lot, like asking te domande about yourself. It's a mans way of mostrare he cares. 10)If he laughs a lot around you. 11)If he takes the time to be near you, like standing in queues, o just trying to be near te in general but not in a stalkery kind of way. Like I said, there are tons of ways and there are più that I haven't mentioned.
I advise that te don't get carried away if a guy does any one of these signs. Some guys may be purely innocent o friendly, so just be cautious.
The easiest way is to watch how he LOOKS at you. Every guy has a different way of flirting, but they all have that same look in their eyes if they like a girl. You'll know if te see it. Also other indications might me that he gives te his number, he goes out of his way to stand successivo to te in crowds, he gets embarrassed easy around te and a REALLY GOOD indication that he likes te is that you're just about the ONLY girl he makes a point of talking to.
But if that's the case, the guy that I like likes me!!! YAY!!!!!