<human>:  How do I fix a broken zipper?
<bot>: 
1. First, determine if the zipper teeth are still in good condition. If they are, carefully slide them back together. If the teeth are broken or stuck, use a pair of pliers to remove the broken parts.
2. Once the broken teeth are removed, line up the remaining teeth and carefully close the zipper.
3. If the zipper remains stuck, apply a small amount of lubricant to the zipper track and try again.