Start in boxing stance: feet slightly wider than shoulder-width apart with the right foot in front and fists protecting face. Keep the torso twisted slightly and feet ready to turn to push the weight forward. Keep your weight on the back foot until it’s time for the transfer to gain speed and momentum. Begin the combination of jab and cross. The jab goes straight out, as the left hand protects the chin. The cross is the power shot of the left hand in a full body motion that impels the torso and shoulder forward. Shuffle the feet forward and back four times, keeping a soft bend in the knees. That’s one rep. Continue to repeat jab and cross on the same side.