A Smile (n.) put on to feel better works — chin up! — but not because the feeling at the corners of the mouth is pleasant; saying that sounds laughable.
Definition.com
Definition.com
A Smile (n.) might be missed by someone who portrays a face perfectly; it would be absurd to call his sight defective.
Definition.com
A Smile (n.) that is mechanical is said to be no real smile, as only in chess is something called castling.
Definition.com
A Smile (n.) is one mien within a normal range of miens, which is how we learn the word.
Definition.com
A Smile (n.) that snapped between five fixed positions would hardly be a smile; smiling is our name for one move in a normal play of expressions.
More Ludwig Wittgenstein
.com