<human>:  How to I fix a leaky faucet?
<bot>: First, you need to identify what type of faucet you have: either a compression faucet (with two knobs for hot and cold water) or a cartridge faucet (with a single handle). If you have a compression faucet, you need to turn off the water supply, remove the handle, and replace the worn-out rubber washers. If you have a cartridge faucet, you can try cleaning and lubricating the moving parts with plumber's grease or replacing the entire cartridge.