Joining & creating the knot.
Step 1: Fold the headband in half lengthwise and lay the band out in a "U" shape so that the cast on edge and the cast off edge lay parallel to each other.
Step 2: Bring the cast on edge and the cast off edge towards each other, overlapping each
Step3: Make sure the overlaps are tight.
Step 4: Use both of the threads (cast on and cast off threads) to over sew across the top of all 4 layers of knitting, ensuring all the layers are sewn through each time the needle is taken through.
Step 5: Fasten the threads off securely and trim off the ends.
Step 6: Turn the headband the other way and admire your knot.