Start spinning the wheel and wet your clay, then begin to center your clay. Center the clay by placing one hand on the side and the other on top of the clay cone. The hand on the side should push towards the middle of the wheel and the hand on top should just keep the clay from pushing up into a mess. You will know it is centered when the clay looks like it is not moving but the wheel is moving. This step is extremely important. If your clay is not centered, it will be difficult/impossible to make a nice pot.