From Opposite-Sex Facing Dancers.
Boy raises right-hand palm out, patty-cake style;
Girl raises left-hand palm out, patty-cake style.
Touch hands, walk forward into the other dancer's starting
position, while turning 1/4 (Boy right, Girl left)
such that the Girl goes under the Boy's raised arm. At completion
of the call, lower joined hands to waist level and form
a normal handhold.
Ends in a couple, facing 90° from starting direction.