That pleased, kind, or amused facial expression with the corners of the mouth turned up and the front teeth exposed is called a smile.
This facial expression is said to represent happiness or satisfaction in those presenting them.
Today is a day when we are supposed to take the smile to heart and share them with others.
Today is World Smile Day since 1999.
Held under the auspices of the Harvey Ball World Smile Foundation it is said to be a representation of positivity. The day is held on the first Friday in October. That makes it October the third this year.
Its about reclaiming the meaning behind the smiley emoji by encouraging people to make a others smile and act kindly. This year's theme is "Do an act of kindness. Help one person smile!" So smile if you can ...
But I personally support the grimmace if necessary. It all depends on your orientation and attitude.