He might want to go out with you or he liked the kiss
It does not necessarily mean anything - he may not be interested in your smiling.
You can tell a guy likes kissing you.When your done kissing a guy,he'll look you in the eyes and mabye he'll bite his lower lip.He might as well get a smile out of it.So go ahead and do it,you'll see what I mean. answer usually when he wants to do it with you again. frequently.
If your boyfriend cannot stop kissing you, it may be a sign of violence. Dump that guy.
It means he's nice, don't look to into it.
act nice and smile.
If he's a guy it means that he's gay.
It mean he is trying to let you know he likes you by complimenting you.
He wants to have sex with you and "put a smile on your face."
That you like him
It means he likes you.
It means that he likes it.
It means he's into you.