Put your hands flat on the work surface, palms up, either side of the dough, one forward, and one back. Now, in a fluid motion, bring your hands together under the dough, at the same time sliding the forward hand back and the back hand forward. This both spins the dough and stretches the upper surface down and under. Repeat this ‘spinning’ action two or three times. With practice, you can start to cup your hands around the dough; the point of the flat hands is to discipline yourself to use the inside edges of your palms and little fingers to do the stretching work.