Something about me/my teaching I want to change.

I tend to frown. I am a compulsive frowner. I have frowned since I was a little kid. I was five years old when my uncle asked me why I had to look so sad all the time.
I frown when I'm deeply absorbed in and focused on whatever task I'm doing: playing my music, talking on the phone, anything that requires a minimum mental alertness, I'm probably frowning as I type this! Of course I frown when I teach, too. Frowning is my way of concentrating, of pumping myself up for the job. I know that. Those who know me well know that too, but colleagues I've never met can't possibly know and are understandably put off. I wish I could change that and I'm working hard to change that. I'm happy to report that progress is steady but painstakingly slow.
Is there anything you would like to change?

Chaz