Oops, it doesn't look like 'inseong flirting day' is a national day..

Other days

Stud Day

Aloxolt Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Carpenters Day

Martini Day

Singles Day

Prescription Drug Take Back Day

Lisp Day

Frozen Yogurt Day

Tell Ur Crush You Like Them Day