The first step is to get some Christmas lights. You can find them at most stores, or you can even make your own with some simple materials. Next, you'll need to figure out where you want to put the lights. You can put them around the house, on the roof, or even on the trees. Once you've decided where you want to put them, it's time to start hanging them up. You can use clips, nails, or anything else that will keep the lights in place. Just make sure they're secure and don't fall down.