Of course, it depends, sweetie. If they look at you for longer then two or three seconds, and repeatedly look your way, then they like you. If they look at you in a disgusted way, then that means obviously that they don't like you.
When a guy smiles and gives you attention, it would mean that he is probably interested in you.
That doesn't always mean she likes you, but she might be interested.
he looks at you a lot and he smiles at you.
He's interested.
if she is mean to you or if she either twirls her hair or smiles real smug
nothing....
it means he is in love wiht you or likes you
No, it doesn't mean he loves you. It could mean he is interested in you, or he could simply be nice and smile.
Either he is trying to get your attention or he wants to beat the crap out of someone.
he likes you
yes yes, that does mean he might be interested into you. Also, if you like him and if he starts talking to you talk to him and have a conversation... Also, he could just like talking to you as a friend. It can mean either thing so be careful what you say...
Just because she looks at you doesn't mean she likes you. It depends on whether she talks, smiles, laughs or flirts. All girls are different.