For movement to the left, i.e., when on their Own sides, Up for the Man or Down for the Lady, the upper diagram shows the standard version; this is applicable when Time is not of the essence.
For movement to the right, i.e., when on their Own sides, Up for the Lady or Down for the Man, interchange left and right in this description.
This Figure is used by one Couple, usually a Supporting Couple, in conjunction with various movements by another Couple, usually a Dancing couple, in order to Exchange places. If the other Couple is Casting, and especially when there is little Time for them to complete the Figure, it is helpful if those Stepping Up or Stepping Down make the first movement diagonally forwards rather than sideways and step diagonally backwards into line on the third movement. The lower diagram shows this version for movement to the right, applicable when Time is short.