Person-to-person conversation that promotes a product or service. For example: “Hey, I loved that movie. You should check it out.” Word-of-mouth marketing (WOM marketing) can be organic. A brand can also script and direct it. In social media marketing, influencers are a common type of WOM marketing. A trusted expert or celebrity is paid to talk about their experience with a product or service. Authenticity is essential for WOM marketing to be successful, so it’s not always as positive as other types of marketing messages.