Influencing Word of Mouth in Customer Communication

A single conversation between two friends can do what a lavish advertising campaign often cannot: convince someone to buy. When a neighbour mentions a reliable washing machine or a colleague raves about a restaurant, that recommendation carries a weight no billboard can match. This is the quiet power of word of mouth, and for retailers, learning to earn and shape these conversations is one of the most cost-effective ways to grow sales and build a lasting reputation.

What word of mouth communication really means 🔗

Word of mouth (often shortened to W.O.M.) is oral, person-to-person communication between a receiver and a communicator about a brand, product, or service. The defining feature is that it is non-commercial. The person sharing the opinion has nothing to gain from the sale. That is exactly why it feels trustworthy. The communicators are usually the people closest to us: neighbours, friends, and family members.

Because there is no commercial bias, listeners tend to lower their guard. The advice arrives through a relationship built on trust rather than a paid message designed to sell. Research describes word of mouth as informal, interactive advice passed between consumers, and notes that it remains a powerful influence on buying behaviour. In fact, one widely cited study found that roughly half of all switches from one service provider to another were discovered through such conversations.

The numbers from the Indian market underline how central this is. A Nielsen study found that recommendations from friends and family rank as the most trusted form of advertising, with about 91 percent of consumers placing their faith in them, ahead of television, newspapers, and brand websites.

Why word of mouth matters most for expensive and risky purchases 🔗

Not every purchase triggers a conversation. Word of mouth has its strongest effect on products and services that are expensive, risky, or highly visible. When the stakes are low, such as buying a packet of biscuits, people rarely seek advice. But when the decision involves a large sum of money, a long-term commitment, or something others will notice, the fear of making the wrong choice grows.

Think about buying a refrigerator, choosing a coaching centre, booking a wedding caterer, or picking a smartphone. These decisions feel risky because they are difficult to reverse and easy to regret. So buyers turn to people who have already made a similar choice. Here, word of mouth does more than create awareness. It also persuades and leads to action, nudging a person towards a specific retailer or away from one.

This persuasive force explains why retailers selling big-ticket items cannot rely on advertising alone. A customer standing in a showroom comparing two air conditioners may have already made up their mind based on what a relative told them last week.

Word of mouth as a planned marketing discipline 🔗

For a long time, businesses treated word of mouth as something that simply happened, beyond their control. The marketer Andy Sernovitz, a leading voice on the subject, challenged that view. He argued that word of mouth marketing is now actionable, trackable, and plannable, just like any other form of marketing.

In his framing, word of mouth marketing is an umbrella term for dozens of techniques that get customers talking. These include viral marketing, blogs, communities, and loyalty programmes. The crucial point is that, in many cases, this is not “marketing” in the traditional sense at all. It is great customer service that earns respect, and excellent products that people genuinely want to discuss.

Sernovitz is firm that honesty sits at the centre of the practice. In his explanation of the concept, word of mouth marketing means joining a natural conversation between real people without faking or manipulating it. The moment a brand tries to deceive, trust collapses and the strategy backfires. For retailers, the lesson is straightforward: you cannot buy authentic word of mouth, but you can earn it by giving people something worth talking about.

Recognition and personalisation that create stories 🔗

One of the easiest ways to get customers talking is to make them feel recognised. Consider a pizza restaurant chain that trains its staff to greet regular customers by name. The team remembers a customer’s favourite seating and asks whether they want their usual pizza or feel like trying something new that day.

This personal touch turns a routine meal into a small event worth mentioning. The chain goes a step further by empowering its waiters. If a customer dislikes a dish, the waiter has the authority to simply not charge for it. No arguments, no manager approvals. That single gesture transforms a potentially negative experience into a positive story the customer will happily repeat to friends.

What makes this work is that the response is unexpected. People do not anticipate a business willingly giving something up to keep them happy, so the surprise becomes memorable, and memorable experiences travel.

The unexpected CEO follow-up call 🔗

Personalisation does not have to stop at the front line. When customers take the time to give feedback on service quality, some chief executives personally call them back. A senior leader of the company phoning an ordinary customer is the last thing anyone expects.

That single phone call does two things. It signals that the customer’s opinion truly matters, and it converts a forgettable transaction into a story the customer will eagerly share at the next family gathering or with colleagues at work. The cost to the business is a few minutes of time. The return is a wave of positive conversation that money cannot easily buy.

Rewarding loyalty beyond the guarantee 🔗

Loyalty deserves rewards that go beyond the fine print. Picture a customer whose washing machine needs a replacement part that is no longer covered under the warranty. By the rules, they would have to pay. But because this customer had been shopping with the retailer for ten years, the part was replaced free of charge.

The retailer chose the relationship over the rulebook. The financial cost of one component is small compared to the goodwill it generates. That customer will almost certainly tell neighbours, relatives, and friends about the gesture, producing exactly the kind of powerful, credible recommendation that draws new shoppers in. This connects directly to Sernovitz’s idea that loyalty programmes and genuine service are engines of word of mouth.

The danger of negative word of mouth 🔗

Word of mouth cuts both ways, and the negative side spreads faster and lands harder. Negative W.O.M. takes hold when customers feel cheated, ignored, disrespected, or when they face frustrating delays. A rude salesperson, a broken promise, or a long unexplained wait can undo years of careful relationship building.

Studies in consumer behaviour consistently show that people pay more attention to negative information than to positive information. A bad experience is simply more memorable and more likely to be repeated. Research on the subject also finds that negative word of mouth weighs heavily on the decisions of today’s retail consumers, often shaping attitudes more strongly than praise ever could.

This imbalance is dangerous for retailers. A handful of dissatisfied customers can reach far more people than a much larger group of happy ones. The result can be an instant drop in sales and reputation damage that lingers long after the original complaint is forgotten.

How retailers can prevent and manage it 🔗

Preventing negative word of mouth is therefore not optional; it is critical to survival. The most reliable defence is to remove the triggers in the first place. Treat every customer with respect, communicate honestly about delays, and resolve complaints quickly rather than dismissing them.

When something does go wrong, the recovery matters enormously. A fast, fair, and generous response can actually turn an unhappy customer into a loyal one, much like the waiter who refused to charge for a poor meal. Listening carefully to feedback, empowering frontline staff to fix problems on the spot, and following up sincerely all help convert a complaint into a second chance. Handled well, the very moment that could have produced damaging gossip becomes a story of how the business made things right.

Bringing it together 🔗

Word of mouth is not a lucky accident. It is the natural outcome of treating people well, exceeding expectations in small but meaningful ways, and giving customers genuine reasons to talk. Whether it is remembering a regular’s name, replacing a part out of goodwill, or a leader picking up the phone, each gesture plants a seed for a conversation. At the same time, every ignored complaint or careless interaction risks planting a far louder, more harmful one. For any retailer, the message is clear: manage the conversation, because customers will talk either way.

What do you think? Which recent shopping experience made you recommend a store to someone you know, and what exactly was it that made you want to share it? If you ran a retail business, how would you train your staff to turn an upset customer into a loyal one?

References

1. https://www.sciencedirect.com/science/article/abs/pii/S0167811608000396
2. https://www.nielsen.com/news-center/2012/in-india-recommendations-and-online-consumer-reviews-most-truste/
3. https://www.marketingprofs.com/6/sernovitz1.asp
4. https://www.inc.com/inc-advisor/public-relations-word-of-mouth-marketing.html
5. https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2017.01256/full
6. https://onlinelibrary.wiley.com/doi/full/10.1002/cb.2429