World Smile Day is held on the first Friday of October each year. The slogan for the day is “Do an act of kindness. Help one person smile!” The Worcester Historical Museum plays a key role in educating people about Worcester's connection to the smiley face.

Psychologist and author Dr. Harry Cohen says you have to be intentional with your happiness.

Worcester native and freelance artist Harvey Ball, inventor of the iconic smiley face, created World Smile Day in 1999 to encourage people to devote one day to smiles and kind acts. The event is held each year on the first Friday in October and has grown to be celebrated around the world.