it means a girl that shares his sense of humor
He means you have a charming or pleasant smile.
You're probably thinking of Smile by Papa Roach.
He wants a booty call... Don't take him back you'll regret it.
Nothing she is just being friendly. Actually, this answer by just being 'friendly' isnt completely true, sometimes if she does so, it could mean she is interested in you.
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 depend on what you did to make him tell you F you if you did nothing then i he don't really love you
say so are you (if you mean it) and smile when you say it.
the best part of their day,the part that made them smile
She could be flirting with you or just being mean.
be nice, to him, do whatever he says, ( even if its dirty ) and just have fun!