From a normal Squared Set.
Heads move in and right arm turn 1/2 with opposite;
Head Men left arm turn 3/4 as Head Lady step forward as
Side Lady veer right to become a partner with the Head Men as
Side Men courtesy turn Head Ladies;
all Promenade 1/2.
Ends in a Squared Set.
Repeat the above movement for a total of 4 times
(twice for Heads to the center, then twice for Sides to the center).