If you don't have a ladder, there are a few creative ways to hang Christmas lights. One way is to use a long pole with a hook at the end. You can then place the pole against the wall and use the hook to hang the lights. Another way is to use a long piece of string or twine. You can attach one end of the string to the lights and the other end to a tree or other object. You can then adjust the length of the string to get the desired height for the lights.