Ask ur bf/gf if u ca kiss him/her. If they say yes, go really close, start licking his/her lips lightly, then stop. After that take his/her bottom lip and suck nice and soft on it. By this time they should want you to kiss them. Go to his/hers ear and whisper "sucker" then run/walk away fast, for they could grab u or chase after u like my bf does I do this with my bf, its so funny seeing him get upset and he walks away mad but i always jump on his back andd kiss him when he drops me.