This "quick tutorial" introduces the general idea of a call and explains the most common cases. It does not explain or illustrate all cases. For additional details and/or examples, refer to the links in the "MORE INFO" box.
If you are in a four-person box, you can think of the direction as being either toward the center of your couple or the center of the box itself -- the direction will be the same either way.
But you can do it in a box even if there are no couples or mini-waves. Everybody just turns 1/4 toward the center of the box.
You may occasionally see it from a diamond.
1/4 Out is the same except you turn in the opposite direction, away from your partner or away from the center of your box.
The most important things to remember about these calls are that:
Notice the important difference between 1/4 In and Face In. In particular, from parallel lines, after a Face In everybody would be facing toward the center of the whole square, in a "beginning double pass thru" formation.
In contrast, after a 1/4 In from parallel lines the dancers will be facing toward the center of each box.