3. Fold the tip of the triangle once up towards the middle of the long side. Then fold the tip back again. Now fold the corner up to the crease that you have just made.
4. Next, take the top layer of the right corner. Look for the edge of the smaller triangle and use it to fold the right corner towards the middle. Repeat this step with the left corner and then unfold them again.
5. Turn the triangle over and repeat step 4 on this side as well.
6. Now unfold the entire triangle. There should be many square-shaped creases in the middle of the sheet. Take the smallest one and carefully fold it upwards. You should now be able to see small triangular pockets at all four corners.