Handkerchief, pochette, fazelleto, panuelo, mouchoir de poche, tenugui, hankachi or hank. They all mean one thing. A small innocent square of fabric. Place one in a jacket pocket however, and it transforms into a pocket square. This guide features 22 pocket square folds, for linen, cotton and silk, from the simple to the flamboyant 'Bouquet' fold.