How do you kiss sensually?

You might try this. Start very very gently, light kisses, barely touching lips. Keep doing this but gradually kiss a little harder, put your hands on his/her face, you might start using some tongue. Then build it down again ending with soft short light kisses. The key is to start gently, intensify the kiss and then slowing down again. Don't ever immediately go in with a lot of tongue, not sexy. good luck!