Think timeless, classic. If in doubt, a professional suit or a classic office-wear look will usually work. Suit and tie always looks great. If you don’t wear a tie, consider putting on a sweatshirt or a jacket to add a layer or two. This will help avoid a ‘floating head’ look. If you are a freelancer, or you own a personal brand or small business, you can go for more ‘relaxed' look: jeans, trainers and a t-shirt… Dress in what you normally put on going to work.