<human>:  How do I crochet a basic hat pattern?
<bot>: 
1. Gather the items you need to crochet a hat, such as yarn, a crochet hook, and a tapestry needle.
2. Start with a slip knot on your crochet hook and make a chain long enough to fit your head plus an extra 4-5 inches to ensure a snug fit.
3. Join the chain together with slip stitch to form the base of the hat.