Purplehaze, don't do it online.

Here is my recommendation:

Buy/download the original broadway cast recording of HAIR.
Next time you see your girl, invite her over to get high and listen to music.
Get nicely stoned with her, and try to be clear with your body language that you'd like to be close to her (if you're not already close to her.)
Get comfortable, light a joint, and listen to HAIR.
Just let whatever happens, happen.

If this doesn't get you somewhere, I'll give you another idea