Word of mouth is one of the most cost effective forms of marketing. If someone you know, like and trust recommends a restaurant, a movie, or a product, you’ll probably give it a try if you’re in the market for what they’re raving about. This is why having a brand ambassador who backs up your product or service can be such a powerful tool. Once you have someone with a significant amount of influence sharing their love for your brand, they’ll inspire others in their networks to do the same. By following these four steps, you can turn a casual website visitor into an unstoppable brand ambassador.