First style: Lick kiss - Use your tongue to lick the other person's upper and lower lips, allowing them to feel the sensation of the taste buds on your tongue. Make sure to maintain sufficient saliva; if there is too little saliva, a dry lick kiss may feel uncomfortable.
Second style: Bite kiss - Gently bite the other person's lips with your teeth, but don't bite too hard to avoid injury!
Third style: Suck kiss - Gently suck on the other person's lips; you can lightly smear your own saliva on their lips and then suck it clean.
Fourth style: Thrust kiss - Extend your tongue into the other person's mouth, allowing the tongues to push and play with each other. The male should use less force to avoid causing pain to the female; this mutual thrusting kiss can create pleasure.