The knot used for the bracelet has a few different names, cobra stitch, Solomon bar, and Portuguese sinnet. Take the cord on the left side and place it under the center strands running between the buckle ends. Now take the cord on the right side under the left side cord, over the center strands, and thru the loop of the left side cord. Tighten up the cords so the half knot you just formed is next to the buckle. Now take the right side cord under the center strands. The left side cord goes under the right side cord, over the center strands and thru the loop of the right side cord. Tighten up the cords (not too tight, just until they meet the resistance of the knot) and now you have a completed knot. You will continue doing this alternating the left and right sides as you go. If you don't alternate, you'll quickly see a twisting of the knots, just undo the last knot and alternate it to correct.