Well, the first step is to find the power cord of the lights. Then, you'll need to plug it into an outlet. Next, you'll need to untangle the wires and find the wires that connect to the tree itself. Once you've found those, you can start connecting the lights to the tree. It's important to make sure that the wires are connected securely so that the lights don't fall off. Finally, you'll need to make sure that all the lights are working and that none of them are burnt out.