To hang Christmas lights on gutters, you'll need to follow these steps:
1. Measure the length of the gutter to determine how many sets of lights you'll need.
2. Position a ladder near the gutter and climb up to access it.
3. Attach a gutter clip to the top of each light set and insert it into the gutter.
4. Use an extension cord to connect the light sets to an outlet.
5. Test the lights to ensure they're working properly and adjust their position if necessary.