When the instructor says make a block and wants you to stand in rows and columns.
Here you stand directly behind the person in front of you. This makes it easy to see who is not in time with the color guard.
When the instructor says make a block and wants you to stand "in the windows".
The second and fourth rows are in the "window" of the first and the third!
Whether you are marching with a band in Color Guard or out on the Winter Guard floor, you should understand where you are at on your performance stage.
Front torso & shoulders square to the audience/front sideline.
Your back square to the audience/front sideline.