Foundation 19 of 20 · Measure
What Is Word-of-Mouth Marketing? How to Grow It on Purpose
Word of Mouth Is Real. It Is Also Only as Loud as the Room Your Customers Are Standing In.
"I've never spent a coin on marketing. Word of mouth works! Doesn't it?" If your business runs on word of mouth and the room is full of the same faces, you may have hit a ceiling. Here is what word-of-mouth marketing is, why it is not a plan on its own, and how to grow it on purpose.
Last Updated: 10/25/2026 · Written by Dr. Paul Borosky, DBA, MBA
The Short Answer
What Is Word-of-Mouth Marketing?
Textbook Definition
Word-of-mouth marketing is the process by which customers share information and recommendations about a business with others, and the deliberate efforts a business makes to encourage, facilitate, and extend those conversations.
In Plain English
Word-of-mouth marketing is customers telling other people about you, and you helping that happen on purpose. It is real and powerful, but it only reaches the people your current customers already talk to. To grow, you have to give it somewhere new to travel.
Why It Matters
Why Does Word of Mouth Stop Growing?
Word of mouth is a loop. Your customers tell people like them, who become customers like them. If your customers all live in one area or one circle, your word of mouth is a very loud conversation in a very small room. The room stays full, with the same faces, for years.
"We have never had to advertise" is often true, and often the reason a good business has stayed the same size. Word-of-mouth marketing grows when you find the people who talk to customers you do not have yet, and give them something easy to carry.
Signs you have this problem:
- Your room is full of the same regulars year after year.
- You get only two or three first-time customers a month.
- New customers are almost always friends or relatives of current ones.
- You are busy at a few peak times and quiet the rest of the week.
- A few regulars have moved away and nobody replaced them.
- You say "we never spend on marketing" as a point of pride.
What It Looks Like
What It Looks Like When the Room Is Full of the Same Forty Faces
From the Fabled Forest · Chapter 19
Louie's waffle café was full every Saturday morning. Doctor Owl could name every face. Louie had never spent a coin on marketing, and was proud of it. His first-time card showed two new customers that month, both somebody's cousin. Tuesday afternoons it was Louie, the badger, and empty umbrellas.
Mrs. Owl-Willow asked where his customers lived. Here. And who did they tell? Their cousins, who used to live here. The regulars were thinning out: the stoat moved away, the herons never came back. Word of mouth was working perfectly. It just never left the square.
Louie named the loudest mouths who talked to coast visitors: the ferry crew. He gave them cards and a free waffle for anyone they brought. Tobias added Louie's to a "where to eat off the ferry" sheet. His card got a new line with directions from the dock. Nine coins total. First-time customers that month: nineteen, eleven of them off the boat.
Louie's story is Chapter 19 of Marketing for Small Businesses, Book 4 of Dr. Paul's Fabled Forest Business School Series.
The Fix
How to Grow Word of Mouth on Purpose in 5 Steps
Find the doors in the loop. They are usually people who talk to strangers for a living.
Count first-time customers for a month.
Ask each one how they found you. If the answer is always "a friend," ask where the friend lives.
Find where your current customers do not reach.
A neighborhood, a group of visitors, a type of business. That is where new growth is.
Name the people who talk to those customers.
Hotel desks, drivers, neighboring shops, local guides, group admins, delivery crews.
Give each of them something to carry.
A card with directions, one line to say, and a real thank-you when it works. A small, honest reward is fine.
Keep counting.
Watch first-time customers and where they came from. Put more effort behind the doors that open.
Dr. Paul's Insight
The most common mistake is treating "we do not spend on marketing" as a badge. It is only a badge if the room is full of new faces. If it is the same faces, it is a ceiling. Feeding word of mouth rarely takes much money. It takes deciding to do it, and asking people who already like you to carry your name a little further.
Sample: A Word-of-Mouth Door List
People who talk to the customers you do not have yet.
| Who talks to them | What we give | Thank-you |
|---|---|---|
| Ferry crew | Cards with directions from the dock | Free waffle per new customer |
| Shipping counter | A spot on their "where to eat" sheet | Free waffle for the owner |
| Garden center across the river | Cards by their register | Swap: their cards by ours |
| Visitor info board | Card and one-line directions | None needed |
Sample for illustration. Keep thank-yous small and honest.
Watch
Video: How to Grow Word of Mouth Beyond Your Regulars
What Is Word-of-Mouth Marketing? How to Grow It on Purpose
Dr. Paul maps where customers come from and builds a word-of-mouth door list on screen.
From the Book
Who Do They Tell?
Chapter 19 · Word-of-Mouth Marketing
Everybody Knows Louie: A Labrador's Full Room, Same Faces
"And who do they tell?"
"Their..." Louie looked at the otter, eating her Morning Waffle at the end of the counter, whose cousin had moved to the coast. "Their cousins. Who used to live here. Who tell their cousins, who've never been. Who come once a year, if they come." He put the spatula down. "Word of mouth goes exactly as far as my customers go. And my customers don't go anywhere."
Who were the loudest mouths on the coast, and how many new faces came in? Find out in Chapter 19. Book 4 of Dr. Paul's Fabled Forest Business School Series.
Get the Book on Amazon →FAQ
Word-of-Mouth Marketing Questions
Is word of mouth enough marketing for a small business?
How can I encourage word of mouth?
What is the difference between word of mouth and referral marketing?
How do I measure word of mouth?
Keep Going
Related Foundations
Word of mouth connects four foundations that turn happy customers into growth. New to a term on this page? Every one is in the marketing glossary.
Foundation 13 · Referral Marketing
Referral cards and sentences give word of mouth something to carry.
Foundation 20 · Relationship Marketing
Relationships turn word of mouth into loyalty.
Foundation 11 · Content Marketing
Helpful content gives people something worth passing on.
Foundation 14 · Reputation Management
What people say in public is word of mouth too.
Written by Dr. Paul Borosky, DBA, MBA, business consultant and author who helps owners get found by the right customers. Full of regulars, but not enough new faces? See business growth plan options.
This page is for general educational purposes only. It is not legal, financial, or other professional advice. Trademark, privacy, and advertising rules vary, so talk with a qualified professional before registering a name, collecting customer data, or making claims about a competitor. Dollar figures are illustrations. The Fabled Forest and its characters are fictional. For decisions about your own business, consult a qualified professional.