There are quite a few faux pas in the fashion world - failed outfits, or how you wear them, that signals you're not the well dressed man you aimed to be. Buttoning all the buttons in your suit jacket is a classic one. Matching your pocket square with a tie in the same, identical pattern is another big no-no. Luckily you probably don't own a tie in the same pattern as this brown and blue camouflage handkerchief.