"What are you doing for Kwanzaa?"
Is something I might ask my family and friends who I know that celebrate. The answer is either some kind of community service, making donations OR it could be something like starting to exercise more, or studying a new language. That thing where you start the habit for your new year's resolution on the week before so you can keep going all year.
What I remember most is cleaning the whole house and donating and repairing things.