Christmas tree lights can be a bit tricky, but with a bit of practice, you'll have them hanging in no time! First, make sure you have the correct type of lights for your tree. If you're using a real tree, choose lights designed for outdoor use. Next, decide where you want the lights to go. Start from the top of the tree and work your way down, making sure to wrap the lights evenly around the branches. Finally, plug in the lights and admire your handiwork!