Body contact. You must first have it explained what dancing on four tracks is.Years ago while Ballroom Dancing was in its infancy they used to dance almost square on getting to the point where they were knee capping each other.
Then along came Walley Fryer who said the lady needs to be more to the mans right side. If you find yourself a tape either by John Woods or Richard Gleaves just to nention two. Every thing you need to know about the setup, right side to right side, is explained.Good Luck with your dancing