Smile big and you feel like “happy days are here again.” But smile big. A half-developed smile is not fully guaranteed. Smile until your teeth show. That large-size smile is fully guaranteed. I’ve heard many times, “Yes, but when I fear something, or when I’m angry, I don’t feel like smiling.” Of course you don’t. No one does. The trick is to tell yourself forcefully, “I’m going to smile.” Then smile. Harness the power of smiling.