[kellerumps]

Here is part of the explanation.

....... This signal does not have to be exact, but it must be clearly understood (that someone
has been ejected) and should not be overly demonstrative. Two options are offered:

While facing the person to be ejected, step back with the left foot (this opens the body
and will allow it to turn/open to your left as you make the arm signal). Bring the right
arm with the index finger extended, up, across the body and point skyward to your left.
Your arm should be at a 45 degree angle to your body. You will be facing away from the
ejected person now and the right side of your body will be facing the him/her.

Have a great day