You can perform this move with a box, step, or bench, or simply jump without any equipment at all.
Come onto your right leg. Bend your knee, shift hips back, and jump as high as possible off the ground (possibly on top of a box, step, or bench). Land softly with knee bent. Make sure knee does not track too far over toes and focus on pushing your hips back behind you. Do 5 reps on each side.