Exercises for the Face Muscles for Public Speaking

Have you ever noticed how pleasant it is to listen to people who have a relaxed, smiling face? One of my Toastmaster buddies was really focused on telling people how their voices lifted and warmed and got colorful when they smiled. That was certainly one of the most important tips I received from him. Sometimes when my dh is on the phone and very sombre I will jump around with my fingers at the corners of my mouth to cue him to smile... he is such a great sport, and I DO notice how it changes his voice color and quality.