<human>:  How do I fix a squeaky door hinge?
<bot>: First, you need to lubricate the door hinge. Start by cleaning off any dirt and grime from the hinge. Then, apply a light layer of WD-40 or a silicone-based lubricant to the hinge. Finally, open and close the door several times to distribute the lubricant evenly. This should take care of the squeak.