I agree with Latisha and Indulgence. You can't just dive in there(unless......forget it, that's a whole other post).
Definately start out very gentle......the clit: rub it, lick it, try lightly sucking on it...gently.....gently....my friend......
see how she is feeling. Is she moaning, or making any noise at all? If not, ask if she likes what you are doing to her.
The definate trick is to have your finger inside her, moving back and forth(almost pushing down-that's a special spot)while you are licking, rubbing, etc....
if she's anything like me, she'll go nuts......

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2sexypeople a little on the wild side, and gettin' wilder by the minute!