Start with chain 1 (ch 1):
1) Yarn over the hook then pull the yarn through the loop on crochet hook.
2) Chain 1 is made.
How to make 6 single crochet in a ring (6 sc in a ring):
1) Put the hook through the ring, yarn over the hook then pull the yarn through the ring.
2) After No.1, you will have 2 loops on the hook.
4) Make another 5 single crochet by repeating steps 1-3. The picture below shows 6 single crochet (6 sc) made.
5) The picture below shows finished round 1 (6 sc made).