The leader has to communicate the direction of the movement to the follower. Traditionally, the leader's right hand is on the follower's back, near the lowest part of the shoulder-blade. This is the strongest part of the back and the leader can easily pull the follower's body inwards. To enable the leader to communicate a step forward (backward for the follower) the follower has to constantly put a little weight against the leader's right hand. When the leader goes forward, the follower will naturally go backwards.