“No matter how much madder it may make you, get out of bed forcing a smile. You may not smile because you are cheerful; but if you will force yourself to smile, you'll end up laughing. You will be cheerful because you smile. Repeated experiments prove that when we assume the facial expressions of a given mental mood - any given mood - then that mental mood itself will follow.”

“Doing something positive will help turn your mood around. When you smile, your body relaxes. When you experience human touch and interaction, it eases tension in your body.”

“If there is anything you can do, it may just be to smile for them. Because when you smile, the world seems just a little kinder. For you to just be yourself is a very important thing, I think.”

“In the hours that followed, I learned that Ademic hand gestures did not actually represent facial expressions. It was nothing so simple as that. For example a smile can mean you're amused, happy, grateful, or satisfied. You can smile to comfort someone. You can smile because you're content or because you're in love. A grimace or a grin look similar to a smile, but they mean entirely different things.Imagine trying to teach someone how to smile. Imagine trying to describe what different smiles mean and when, precisely, to use them in conversation. It's harder than learning to walk.”

“Cheer up, Crips, and keep smiling. That’s the thing to do. If you go through life with a smile on your face, you’ll be amazed how many people will come up to you and say ‘What the hell are you grinning about? What’s so funny?’ Make you a lot of new friends.”

“His smile can lift me out of even the darkest mood”