Stand up straight with your feet slightly wider than hip-distance apart.
Allow your knees to soften.
Curl your hands into a fist and bend your elbows, keeping your fists close into your chest.
Alternately loop your arms around to your side and punch up, ensuring you drive the punch upwards and keep your fists close to your body.
Allow your upper body to rotate and dip with the punches.
Tighten your abdominal muscles to ensure your lower body stays still.