Yes. I still have in my head when my T said, "Not with THAT attitude!" and use it on myself now :-)

You should tell her your observations about her body language and the twisting; I bet you a zillion pounds she'd laugh and enjoy it too! You should say and laugh at charging her for your services, that's not "bad" and I've read over and over how T's say they learn as much/more from us as we do from them.
We're just as good a "mirror"/observer of our Ts and they are of us!