Standing, hinge forwards at your hips keeping your knees soft and spine straight, until your torse is near paralell with the floor and your arms are hanging down relaxed towards the floor. Slide your shoulder blades together and down, then lift your hands up overhead towards the ceiling keeping your elbows straight to make a Y shape with your arms. Keep neck straight and do not allow the chin to poke forwards. Lower back to the start position before repeating.
Be careful not to hike your shoulders up to your ears.