1. Keep your lips soft: Make sure that your lips are not chapped or dry. Drink lots of water or use a lip balm as slight moist mouth is ideal for kissing.
2. One thing to remember is that French kiss is an open-mouthed kiss so you'll have to use a lot tongue.
3. When the moment seems right tilt your head on one side and move slowly towards your partner. Close your eyes. Just before you make contact, close your eyes. Kissing with your eyes open is generally associated with dishonesty and insincerity.
4. Lightly brush your lips against his.
5. Once you've built a solid foundation for a French kiss with some tongueless kissing, you can give the other person some subtle hints that you're ready to take it up a notch.