Human: How do I fix a clogged sink? Assistant: 

1. Start by locating the source of the clog. Depending on the type of sink you have, the clog could be located in the drain, the P-trap, or the trap arm.
2. In some cases, you may be able to unclog the sink with a plunger. To use a plunger, place it over the drain and move it up and down several times. This will create suction and can help break up the clog.
3. If the plunger is not helping, you will likely need to use a drain snake. Insert the drain snake into the drain and rotate the handle. This should help break up the clog.
4. If the clog is still present, you can try a chemical cleaner or drain opener. Follow the instructions on the bottle for proper use.
5. If all else fails, you may need to contact a professional plumber.