You can either use a rolling pin or you can even stretch it with your hands, whatever works for you. I usually do it with a rolling pin, so that the edges are even. If you are doing with your hands, stretch till you reach your desired width and then using your hands, pinch the edges to make a crust, or fold over the edges. Make sure to poke holes, using a fort on the pizza bread, so that it doesn't fluff up while baking.