It could mean he's pleasant and friendly - but simply chooses not to go out with you. That's OK - he sounds like a good guy.
Or, it could mean he does want to go out with you - but he wants to be "begged" a little more. That means he's a self-centered creep, and you're better off without him.
It could mean that he is flattered by your request and doesn't want to hurt your feelings by rejecting you outright. However, his continued smiling could also indicate that he values your friendship and wants to maintain a positive relationship with you. It's important to respect his answer and not pressure him further if he has already declined your invitation.
that means he likes you but he might be embarassed or doesnt want to admit it
It sounds like he may like you, but you can not be sure unless you ask.
That should mean some sort of red flag but I can't think of what. Maybe you should ask him out again. If he declines, this time you should certainly be concerned.
Yes, you should. What have you got to lose?
he likes you.
If you like her Go for it! Start by talking to her often and smiling or complementing her. Then ask her "Would you like to go out with me?" and if she says no there are always other cute girls out there. If she says yes thats Great!
not necessarily, she may just be amused that you asked for her number.
well it could mean he likes you but is a bit shy or he could just be thinking of something someone said if you know him ask him why he won't stop smiling.
they like you and ask them out and they will say yes
Forget about it
ask him hit who?
If it doesn't mean exactly what it says, we have no idea what it means. Ask her.
You can just ask her what you wants from you. She most likely likes you and wants to talk to you, she just does not know how too.