That's actually a very good question! The process of getting Christmas lights to work can vary depending on the type of lights you have. If you have traditional incandescent lights, you'll need to make sure that they are properly plugged in and that the bulbs are all intact. If you have LED lights, you'll need to ensure that they are connected to a power source and that the bulbs are not burned out. Additionally, some lights may require a specific on/off switch to be activated.