Then you simply pull the bottom ring over the top, leaving the top ring on your finger.
Wrap your fingers again to make a second ring, and continue until you have the length you want.
When your ready to finish your boa or scarf, cast off by moving the pinkie loop to the ring finger, and pulling the ring finger loop over it. Repeat with each finger, moving the loop to the next and pulling the bottom loop over it. Then, take the last remaining loop off of your pointer finger and pull the end tightly. Fun fur or the yarn like it, produces a lovely boa - perfect for adorning girls, or teddy bears, for tea.
There's a very good "how to finger knit" video at www.wikihow.com/Finger-Weave.
It's great to be a homeschooler!