Trying to get the body to stay still while only the head moves. Stick tool not working or I'm not using it right. I forgot how to change from it says "origin" to "body", if that's supposed to make a difference.
I think you need to have the Body layer a sibling of the Head layer, not inside. I suspect the Face behavior is moving everything inside Head, including the Body since it is nested inside Head. +WhobutChris should have two children - Head and Body. You can tell its inside if you collapse Head and Body disappears.