You cup your hands together and use your fingertips to form the circle. Leave an outside edge about 1/2" wide and don't thin out the center. Use a lot of flour on your work surface. Next dock the crust with your fingertips so the mound in the middle thins out a bit but is still visibly thicker than the outsides (not the edges). Pick it up and slap it to stretch the dough a bit. Let it come to rest on the backs of your wrists. The side of the pizza that started out on top goes on the bottom now. You can stretch the edges a bit more if you want using the backs of your hands or your knuckles. Lay it down on your pizza peel or your pizza screen. Do the sauce and toppings, and off it goes in the oven. If you're feeling really fiesty you can try tossing it in the air.

That's about the best I can do for you short of making a video.

__________________
You don't need a weatherman to know which way the wind blows - Robert A. Zimmerman