Posting Sayings

I have a little girl that can't remember how to post on the right or left diagnol, do you guys have any savings or ways to help her??

Rise and fall with the leg on the wall

Rise and Fall with the Leg on the Wall has always worked for me :)

But does she for sure know what diagonal she is on? For ex. If you ask her which diagonal she is on she will say "left/right," and be correct? This comes first.