1) The First Kiss
Brush your lips softly against hers before you start with any serious tongue action.
2) The Public Kiss
You can occasionally surpass G-rated — just make it brief. A stolen kiss in a dimly-lit bar that involves some darting tongue and perhaps a lingering nibble of the lip on the pull-away is a great way to hint at greater things to come later on.
3) The “I Want You” Kiss
Push her up against a wall, run your hands through her hair, and press your tongue into hers with purpose.
4) The Sex Kiss
I recommend softly pressing your lips up against her the moment you enter her, and then backing off for a minute or so while you two find your groove before kissing her again.