I was in Toastmasters years ago. A more experienced member told me to smile when I privately practiced my speeches and when I asked why I was told that the attitude one feels when practicing and the way one approaches the speech will affect the speaker’s performance. Same philosophy as CD, IMO.There was a video posted a few weeks back of CD scolding freshman Stewie in practice for slouching on the sideline. She shouted across the court, “Breanna Stewart, you better watch your body language.”
One of my favorite CD moments.