weave in and out along the chain with a long strand of brown yarn, starting at one end and once you reach the other end loop the brown yarn around your finger then weave in and out along the chain all the way back to the beginning. Do this step 3 times. You should have 3 loops on your finger when done. Now weave the yellow yarn tail, the one you f/o with down the chain. You should now have 4 strand of yarn at one end. 2 yellow and 2 brown. Cut the loops and run a yarn needle through each strand to fray them. For tail tutorial see video at 1:01:20