It's not as hard as youd think. Just get in there with your tongue, try a few things out till you get the desired reaction, then keep doing that. It sounds corny, but good communication can be very helpful. Just ask her what feels good for her, and then do it. No shame in asking if its your first time....

and in response to spliffstar22 /\/\/\ i can't see why you have a problem with it...it really aint that bad. Depends on the chick really.