This is from the book, The Healing Power of Humor by Allen Klein
“If indeed faking a smile is as beneficial as doing it for real, then go ahead and do it. SMILE. How do you feel when you are smiling?
Now. frown and notice how you are feeling.
Okay. Now go back to your normal face, whatever that is.
Maybe you noticed that it felt better to smile than not to. And perhaps you will do it more often.
If you are still having trouble smiling, try what Virginia Tooper does. She has a 6 inch cardboard cutout smile with an elastic band on it. When she does not feel like smiling, she puts it on. Then she looks in the mirror. Suddenly a real smile happens under the cardboard one.”