As with a Back Hook Kick; * Face the target * Pivot away from the target on the leading leg * Bend the body forward, away from the target * Your legs are going to have to bend a little in order to jump. It's not really possible to jump with straight legs (except barely, using just the ankles -- we want more of a jump than that) * Once you're facing away from the target, jump... * ...and at the same time straighten and lift the kicking leg to start its upward arc around toward the target