I'll show you! Just start by unplugging the strand of lights from the outlet and laying them out flat on the ground. Then, carefully inspect each light bulb and remove any that are burned out or damaged. Next, use a pair of wire cutters to trim any frayed or damaged wires. Finally, reattach the lights to the strand using the clips provided, making sure to keep the wires from crossing or overlapping. Now your strand of lights should be good as new!