Ask your friends to ask her if she likes you or a type of guy like you.
Even my ex was kind of the shy type when it comes to girls but that's how it was for us.
It works...most of the time.
Or just confront her.
Ask her.
There's really no shame when it comes to asking someone how they feel about you.
And this is coming from a girl.
-NANAAA* :11300: