In the realm of pocket square styles, none may be so basic as the Presidential pocket square. This laid-back style was worn by such fashion icons as James Bond and JFK, yet it's one of the plainest pocket fashions ever devised. The Presidential style of pocket square implies responsibility, respectability and trust, making it an ideal choice for businessmen and politicians. It may never be termed high fashion but it can fit in with any occasion that calls for a gentlemen to wear a suit.
Lay a pocket square on the table in front of you with the points lying horizontally and vertically. Fold the left edge over to the right edge, creating a rectangle with two layers.
Run your thumb down the fold you made on the left side of the pocket square to create a sharp crease in the fabric.
Fold the bottom edge of the rectangle up almost to the top edge, leaving about 1/2 inch of the bottom two layers sticking up higher than the top two layers. The exact placement of this fold depends on the depth of your jacket pocket.
Slide the folded pocket square into your lapel pocket with the bottom two layers sticking up above the top of the pocket. If the folded square is too wide to slip into the pocket easily, fold the folded edge back toward your body to make it narrower. Adjust the pocket square to smooth the visible fabric. Your pocket square should look like a stiff piece of plain white paper barely sticking up from the pocket opening.