uhm..just talk to her and I'm sure she will understand lol that's pretty much all the advice that there is..you're always gonna be shy or embarrased or whatever "Live everyday as if it were your last"
Now she might have a bf..if so atleast she'll know how you feel...
She might not feel the same...if not, you can still be friends!
and if she does like you it may take a while for ya'll to "Get together" don't rush anything and don't expect it to happen overnight. Good luck!
"An it harm none, do what ye will."