Oops, it doesn't look like 'hug bear hug day' is a national day..

Other days

kiss a ginger

Kiss A Ginger Day
youth

Youth Day
gum

Gum Day
singles

Singles Day
eat what you want

Eat What You Want Day
lisp

Lisp Day
offer

Offer Day
pumpkin

Pumpkin Day
martini

Martini Day
bow tie

Bow Tie Day