One way to easily hide your GoPro Chest Mount is to wear a shirt or jacket that covers it up. If you're using the standard chest mount, wearing a loose-fitting t-shirt or sweatshirt can cover the strap and camera without making it too noticeable. For more advanced mounts like the Pro Chesty, you may need to look for something with deeper pockets, such as a hoodie or light coat. Additionally, if you don't want people noticing that there's something on your chest even when covered up, consider investing in an accessory designed specifically for this purpose – many options exist like The Strapmount 360 which comes with two detachable pieces of fabric designed to fit over and conceal any type of chest mounted camera!