It varies with the type of guy, but I'd say most guys smile when talking to a girl they like.
(Another Person Answering): Some guys might not want to talk to the girl they like at all, because they're nervous and self-conscious. That's how I always was, and I know a lot of other guys are like that too.
The only way your going to know if this guy likes you is ask him.
Ask him.
The only way to know is to ask her.
the way he lookes at you and how he talkes to you
You know if a guy likes you if... he laughs at your jokes when they arent funny you catch him looking at you when your head is turned he always likes talking to you if he teases you (in a cute way)
Their is no way to know if a boy likes you but you can ask indirectly. Flirting, hanging out, and being alone is a good way to tell if he likes you.
If he smiles at you, looks at you all the time, askes you out. These are the real way you will know if he likes you or not!
If a guy goes out of his way to spend time alone with you, to talk to you, to text you often etc. he probably likes you.
The best way to tell if a guy likes you as more than a little sister is to just ask him!
There is only one way to know if a guy likes someone unless you or someone asks him.
If your guy friend likes you tell him how you feel about it. If you like him let him know. If you don't, break it to him easily but not to easy that way he understands and you still have a friendship.
The way u can tell a Guy likes ur smile he will look and smile then try to fix his clothes nice