He might want to go out with you or he liked the kiss
A smile after kissing could indicate happiness, contentment, or feeling connected with the person they kissed. It could also be a sign of affection and enjoying the moment shared with their partner.
they liked the kiss, and they like you.(:
A guy may like kissing you if he initiates it frequently, communicates his enjoyment of the experience, and shows enthusiasm and passion during the kiss. Additionally, positive body language such as leaning in closer or holding you tightly can indicate his interest.
He meant what he said. It was nice kissing you. As in, he liked it.
It does not necessarily mean anything - he may not be interested in your smiling.
it means he wants to get in you
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.
He wants to have sex with you and "put a smile on your face."
It mean he is trying to let you know he likes you by complimenting you.
It means he's into you.
he has acknowledged your existence, good for you! (if you like him)