Listen to Christmas music.
Do a good deed for example:
Go for an afternoon walk.
Go present shopping. The sooner the better.
Have a Christmas karaoke.
Eat dinner by candlelight.
Write letter to Santa
Decorate the Christmas tree.
Go ice skating.
Write out Christmas cards.
Visit Santa Claus.
Listen to Christmas carol.
Do some present wrapping.
It's time for Christmas baking!
Clean the house.
Eat Christmas dinner.