To suck on and lick a man's penis. Proper technique includes synchronized fondling of the balls with the left hand and stroking of the dick with the right hand to the pace of mouth movement. When deep throating, begin to hum and moan, to produce desirable results. This will drive him crazy. When he does orgasm and begin to cum, swallow the milky ejaculate and lick it off of him.
What do you do to dandelions? Ponder that.
Girl: I'm going to give my boyfriend a dandelion for his birthday. *nudgenudgehinthint*
Friend: Congratulations! Be sure not to use your teeth.
Gymnast: Look! I'm so flexible I can give myself a dandelion!