How To Fold A Pocket Square: The One Corner Fold
1. Lay your pocket square on a flat surface, with one corner facing up and one corner facing down so it looks like you have a baseball diamond in front of you.
2. Bring the bottom point to the top point so that you create a triangle.
3. Bring the left corner of the triangle to the right corner, and the right corner to the left corner. You should end up with a long rectangle with a point at the top. It looks sort of like a fence slat.
4. Fold the bottom towards the top and place it in your suit. Adjust until you get the desired amount of point coming out of the pocket.