It’s a pretty sure bet that if you get a ukulele for Christmas you’ll be dragooned by family members into a performance. So you need to have a few Christmas ukulele songs under your belt.
One must get is the Uke Hunt How to Play Christmas Ukulele ebook. It’s particularly good for intermediate players who want to play a few familiar Christmas tunes.
And here are some available on the net.
3. Jingle Bells
4. Silent Night