Stand with feet slightly apart and your weight spread evenly on both feet. Straighten your hips and your body. Move your shoulders slightly back, relax your shoulders and lengthen the back of your neck.
Shift your weight from the balls of your feet onto your heels and back a few times whilst keeping your feet flat on the floor. Move your weight onto one foot and lift the other. Repeat with the side. You can close your eyes to increase difficulty.