Oops, it doesn't look like 'handshake face slap day' is a national day..

Other days

Kiss A Brunette Day

Prosecco Day

Nail Polish Day

Bow Tie Day

Chocolate Milkshake Day

Ask Out Your Crush Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Stud Day

Raise Awerness Of Zeus Day

Gum Day