Always touch the wall with both hands. Lift the knees towards the chest and plant your feet on the wall as the hands make contact. Push one hand forwards cutting underwater and point this arm in the direction you wish to swim. The trailing arm will move over the water surface and start to cut into the water, at which point you will start to push off the wall with your legs. With both hands underwater hold a streamlined position following the push off. Stay underwater to execute one arm stroke and pull back past your hips, the hands are then pushed forwards close to the chest to the front of the stroke. As the hands recover the kick is executed and sends the body to the surface in the stretch position before you resume full stroke.