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

Other days

boba

Boba Day
blanket fort

Blanket Fort Day
special education

Special Education Day
eat what you want

Eat What You Want Day
nail polish

Nail Polish Day
lash

Lash Day
law

Law Day
kale

Kale Day
bounce

Bounce Day
cat girl

Cat Girl Day