It means that you must ask him what it means... only he
knows.
Here we can only guess.
Pick one:
1. He likes her.
2. He does not like her but kiss her hand as a gesture of
friendship.
3. He kiss her hand because he was insane that day
4. He just saw a movie where the guy kissed the gers hand
5. He wanted to see what it was like and it had nothing to do with
the ger.
6. He was bored
7. He was trying to be funny
8. He wasn't kissing her hand, he was taking a closer looked at
something on it and decided that he better kiss it since his mouth
is so near her hand
9. He wanted to taste her hand
10. He saw a smudge of chocolate on her hand and just couldn't
resist chocolates