While some people believe that pockets provide a convenient place for hold small items like pens and card, others think that a shirt becomes less dressy with the addition of a pocket. Pockets are not usually found in more formal dress shirts. Pockets on dress shirts are usually placed on the left side breast. Pockets can come various shapes like square, round and angled. Pockets are really a personal choice though, so you can decide whether to include them or not in your dress shirt.