Complimenting means the same as in the rest of the world, a nice comment. Unless your referring to partnering (Pas de Deux) complimenting would mean a fitting partner, someone who's the right height and body image that helps to add to the dance and is complimenting the other dancer.
nothing
She could just be being polite, but it sounds like she's interested in you. The only way to find out is to ask her.
It mean he is trying to let you know he likes you by complimenting you.
ANSWER:... Not a thing, this person is complimenting you as a nice gesture.
It could mean he is getting an erection, or his clothes are uncomfortable, just like when a girl adjusts her bra.
quel humour = what a humor ( understand : 'you have a huge sens of humor')
Odd sense of humor; peculiar sense of humor. It is means you have a different sense of humor than most people and when people say this, they mean it as a good thing.
The phrase "sense of humor" refers to an individual's ability to find things funny or amusing. It is subjective and varies from person to person. The mean or average sense of humor is difficult to quantify as humor is a complex and personal trait.
It means to be as nice as your smile is. Like if someone would say, 'that's one mean jacket', they are complimenting it, right? So, replace nice for mean. : )
It's not clear if you mean "complement" or "compliment". Also, it would depend on what you are complementing (or complimenting).
7