Begin in a kneeling position, sitting on your heel, and the tops of your feet flat on the floor.
Place your hands beside your knees, lock your arms straight, squeezing your triceps and gripping the floor.
Protract your shoulder blades, pushing away from the floor. Raiise your hips, and tuck your knees in to your chest, compressing your core. Exhale as your drive up. Aim to hold for 2-3 seconds at the top, with your hips about shoulder height, then relax back down and repeat for repetitions.
As you build strength, you can increase the lean, to add more load to your shoulders, and reduce the weight on your feet.