Well one way to know is if he says "I like your laugh" obviously. But other ways to know may include things like if he seems to act weird when you start laughing or if he begins to look uncomfortable with the situation when your laughing, then you should be able to tell that he does not like your laugh.
If they make you laugh or they tell you.
he will kiss you!
she will smile, laugh at your jokes, maybe blush...
he wil make you laugh
She likes you and that other guy and her boyfriend but does not know who she likes best.
If the man has diabetes.
ask them,
ask him
if when you make her laugh she trys not to laugh that's one sign if she trys to play a game with you or trys to be on your team
First, decide whether you like him more than your boyfriend. Then, find out if he likes you back. Then decide if you are going to leave your boyfriend.
Stick to you boyfriend cause you know him better and he knows better
when they dont break up with you