Hi Codeboy,
If I were u , I would gather the courage to ask her phonenumber. Easier said then done... I agree.
But when U won't ... u'll regret it for quite some time ...
Just make a scenario in ur head about how & where u can ask for it.
U can also write a note saying what u feel ... hoping she will understand.
And if she doesn't, she ain't worth it man.
Let us know how it went
Greets