<human>:  How do I unclog a sink drain?
<bot>: To unclog a sink drain, start by removing any debris from the sink basin. If the clog is due to a buildup of hair and debris, try using a plunger or chemical drain cleaner. If the clog is due to a blocked pipe, use a plumber's snake or drain auger to try and clear the clog. Once the clog has been cleared, run hot water through the sink to flush out any remaining debris.