Imagine a large X at the top of the hat. You will first hold the center seam and put a stitch there to hold the two sides together, now the top should look like the number eight. **Now take the bottom part of the eight, find the center and put a stitch into it and into the same center spot of the first stitch you made (the one made holding the two sides together before making an eight) then sew it closed.** Repeat from the ** to the other half of the "eight" Does this help ?