human
How do I fix a broken zipper?
assistant
First, make sure the zipper tab is in the correct position. Then, use a pair of needle-nose pliers or tweezers to gently pull apart any stuck or curved teeth. You can try rubbing a graphite pencil or some candle wax over the zipper track to lubricate it. If these methods don't work, you can try using a replacement zipper pull or installing a new zipper.