I tease it with my tongue first, before I even go near that I run kisses down her to her stomach, then to her inner thighs.
Then I lick it ever so slightly, she'd react to it.
Move your tongue in a circle, touch the labia with your tongue, suck on them. When she bucks her hips i focus a bit more on the clit. reach up, then I grab her t*ts.
Don't go too fast on the clit at first, it's sensitive, as she starts getting use to it. then you start hitting the clit with your tongue up and down like a speed bag, lick around it. Suck on it, like a dikk (at least that's how Nina Hartley teaches it.) If she keeps bucking her hips keep going but if she's kinda pushing you away, slow down.
you can use your hands. It's basic, just put your two fingers in like a come hither motion.
If you don't have your entire face dripping with p*ssy juices, you're doing it wrong. I've taken many squirts to the face so I know what i'm talking about.
That's it.