We all know that the true no-no at a wedding is to try and outshine the bride, but that doesn’t mean you can’t bring your best self as a guest. The secret to being a beautiful wedding guest is planning ahead to leave you free to enjoy the glory of the day. Skin. First up, never have a facial the day before or on the day of wedding. If there’s a reaction, you need time to act but you could skip a professional facial altogether by prepping your skin yourself a few days beforehand.