If you are looking to step up your suiting game, you are on the right address. But first some rules.
• Make sure your jacket and trousers fit perfect, it can’t be too big or too small
• Leave the bottom button of your jacket undone
• Make sure your shoes match the tone of the suit. So if you go for a grey suit, combine it with black or brown shoes
• Always button the top button of your shirt
• Don't ever let your shirt cuffs cover your hands