From applicable formations.
Do the anything call; Centers Trade as Ends U-Turn Back by turning
away from the Center of the (4-dancer) formation (i.e., 1/4 Out & Roll).
(If possible) The "K" is to be done in your group of 4.
If you are an End, be sure to do the U-Turn Back by turning away from
the Center (of your 4-dancer formation) since the caller could add a Roll.
The "K" can be fractionalized into halves.
See also Cross The "K" [C2].