From tandem couples facing out:
As couples, turn to face the wall behind you.
The leading couple will wheel to the left
(or as directed)
and the trailing couple will
turn to the right (or as directed)
to form lines.
The caller may reverse the normal order
or even tell the
dancers
to all turn the same
way (which will result in a
Promenade or
Reverse
Promenade formation).