NATIONAL SMILE DAY - May 31 On May 31st, National Smile Day encourages everyone to wear their best smile! By National Day Calendar May 10, 2018
WORLD SMILE DAY - First Friday in October Each year on the first Friday in October, World Smile Day devotes a day to smiles and spreading kindness. Bring your smile and use the smile emoji! By National Day Calendar October 2, 2014