An introduction to the seductive art of French Kissing.
Difficulty: Easy
Time Required: N/A
Here's How:

1. Set the scene. Make sure that the mood and time are right.
2. Relax! Take a deep breath and let go of any tension in your neck and shoulders.
3. Put your arms around the person you want to kiss.
4. Start off with a normal kiss, not too firm, not too aggressive. Closing your eyes is optional.
5. In mid kiss, gently open your mouth and softly nudge the other persons mouth open using your tongue.
6. Again, not too aggressively, move your tongue inside the other persons mouth and playfully touch their tounge.
7. Read the other persons body language, if they seem tense or start to pull away, stop what you are doing.
8. If they open their mouth more or otherwise indicate they like the kiss, keep on doing what you have been only with a little more passion.
9. As the kissing gets going saliva build up can be a problem, don't forget to swallow.
10. Make sure you keep your tongues relaxed but your lips tight (saliva again), you don't want the kiss to turn messy.

via: about.com