How do you crochet onto another crocheted piece?

[Niyava]

Hi I just joined today! But I have a question: I am crocheting a hat currently, and I finished one part of the pattern and bound off. Then, on another part of the hat edge, I am supposed to start crocheting again onto the sts, but I have no idea how. This pattern is really easy yet pretty in the end: http://blog.bitteroclock.com/free-crochet-pattern-axis-of-purpleage-earflap-hat/

The part I don't understand is after you bind off the first ear flap, how do you start crocheting onto the other side for the second ear flap? All I know how to do is to is begin crocheting something, so please help!!

[Gingerbread Girl]

Just go to the first stitch where you are supposed to begin working, insert your hook into that stitch and draw up a loop, which will count as your first chain. The pattern says chain 2, so make one more chain, then continue on with the pattern and work into the stitches as you normally would. 

[Niyava]

Thank you so much! That was really helpful!