It could mean something but I suggest from personal experiences that you don't get your hopes up sometimes it could mean only a friendly gesture but it could also mean he has an interest
it means he is in love wiht you or likes you
It could or it just means he is being nice. Recognizes you and tells you "hi" or smiles. Not a big deal.
Chances are he likes what he is looking at and would be interested in meeting you.
It probably means that he likes you and hes trying to get your attention ask him and find out.
When a guy says he's crazy about you and he smiles, it means that he has fallen in love with you.
it can mean different things. 1. If he smiles at you a lot, he probably likes you 2. If he is just odd, then not.
He likes you ! :)
It means that the guy has a crush on the girl but he is has too much pride to admit that to his friends.
Yes
When a guy smiles and gives you attention, it would mean that he is probably interested in you.
Maybe they think you cute, or maybe they want to meet and talk to you.
Just because a Guy talks and smiles at you doesn't mean he likes you. Boys do it to other boys too and they're just friends.