input question: To harden the chocolate lining the cookie cup

output answer: put the cookie cup in the refrigerator, until the chocolate is hardened.

input question: How to thread a needle.

output answer: Pinch down on the thread between your fingers until you can barely see the tip of the thread between your fingertips. With your other hand holding the needle, bring the thread and needle eye together. Pull through and tie.

input question: How do I look at photos of haircuts

output answer:
Lookup this on Pinterest and look through the images