Ok Man and woman approach each other.
For a peck: Just keep your bottom lip midway between her lips and kiss gently, let her come forward to you (when lips contact) woman tend to be more gentle, instead of you headbutting her ^^
Snog(with tongues....oooo!): Again stay on top open your mouth and let her insert tongue first slie your tongue across hers and now really all it is is the movement.....theres 2 different types of snogging
Wandering:really this is just going around her mouth ocassionaly bumping into her tongue....you can play chase too!
Synchronised: Both try to get your tongues touching in an almost rythm, i find this way good for closer partners.