Oops, it doesn't look like 'kissey kiss day' is a national day..

Other days

ponytail

Ponytail Day
gallery

Gallery Day
tulip

Tulip Day
pick me

Pick Me Day
slime

Slime Day
ask out your crush

Ask Out Your Crush Day
one

One Day
book

Book Day
nae nae

Nae Nae Day
camera

Camera Day