Here are the steps to crochet a circle:

1. Begin by crossing the yarn from the skein (working yarn) over the tail end of the yarn (yarn end) to create a circle.
2. Insert the crochet hook into the circle as shown. Yarn over and pull the yarn from the skein end down through the circle.
3. Chain 1.
4. Yarn over and insert the hook into the circle again.
5. Yarn over and pull up a loop.
6. Yarn over and draw through 2 loops on hook.
7. Repeat steps 4-6 until you have 6 single crochet stitches in your circle.
8. Slip stitch into first single crochet stitch to join.

Here is a video tutorial that you can follow along with:

: https://www.youtube.com/watch?v=Zu2S41JIV4U