Smiling Is Contagious. Customers (and Your Business) Thrive on It. This simple act helps creates a jovial base of clients who will continue using a service and feeling good about it.

By Jeff Sinelli Edited by Dan Bova

Opinions expressed by BIZ Experiences contributors are their own.

All the necessary ingredients were purchased and waiting by the door. I was 12 years old and ready to open my first retail business: a lemonade stand at a local farmers' market. Who doesn't like an ice-cold glass of sweet lemonade in the middle of summer?

On that particular day, though, a cold front swept through Brighton, Mich., and the temperature was a brisk 38 degrees. Before I left the house, my mom declared the unfortunate reality presented by the weather and the probable failure of the lemonade stand. She asked very bluntly if I was sure that I still wanted to go ahead.

I just smiled, nodding my head. Indeed I did not sell any lemonade that day, but I manned my booth and walked away with 100 crisp American dollars. I showed up with a smile and discovered that attitude is truly the most awesome tool a person owns. Customers wanted to reciprocate my joy with a small offering and for my lemonade stand business that day it came in the form of tips, not purchases.

Related: Revive That Old-Fashioned Extra: Excellent Customer Service

Studying the smile phenomenon. Smiles have an effect on those who receive them. "The presence of a smile may provide an important signal that a reward is or is not attainable, " according to a 2003 study in Neuropsychologia. The simple, often spontaneous flexion of facial muscles, combined with a slight tightening of the skin around the eye sockets, can literally make other people feel like they are winning. As smiles are contagious, this sentiment of reward is passed along to the next unsuspecting soul.

A Psychology Today article explained the functional usefulness of stretching the mouth into this position. "Each time you smile at a person, their brain coaxes them to return the favor. You are creating a symbiotic relationship that allows both of you to release feel good chemicals in your brain."

Related: 4 Unconventional Ways to Turn Customers Into Brand Advocates

Examining the business impact. From a business perspective, what could be more essential than a smile? It creates a jovial base of clients who will continue using the service and feeling good about it. The more the business owner smiles, the better the clients feel. The better they feel, the longer they live, and the longer they continue being loyal customers.

In my various roles in the service industry, I tested this science of smiling. Then when I found myself working a 9 a.m. to 5 p.m. corporate sales job inside the four walls of my office, I was shocked to discover that a smile still could be important, even when customers couldn't see my face.

Needing an outlet of entertainment, I started to play around with the inflections and intonations of my voice, speaking with a big smile painted across my face. Colleagues who passed my office certainly questioned my sanity, but orders came through and appointments were being made. By starting with a smile when I called people on the phone, I was able to land face-to-face meetings with clients and close deals.

Today, smiling is one of the five iconic practices built into the foundation of my sandwich franchise, Which Wich. At my company I say smiling is infectious and I'm happy to say there may not be a cure. After the many strange and fortunate interactions that I've had throughout my career (behind the lemonade stand or sandwich counter or on the other end of the telephone line), I can testify that smiling is the contagious, gravitational force that ultimately connects people.

Related: When the Self-Service Customer Smiles

Jeff Sinelli

CEO and Chief Vibe Officer

Jeff Sinelli is the founder of Which Wich in Dallas that now has locations in 38 states and eight countries. The sandwich chain is known for its customizable sandwiches, creative ordering system and personalized sandwich bag.  

Want to be an BIZ Experiences Leadership Network contributor? Apply now to join.

Business Ideas

70 Small Business Ideas to Start in 2025

We put together a list of the best, most profitable small business ideas for BIZ Experiencess to pursue in 2025.

Science & Technology

OpenAI's Latest Move Is a Game Changer — Here's How Smart Solopreneurs Are Turning It Into Profit

OpenAI's latest AI tool acts like a full-time assistant, helping solopreneurs save time, find leads and grow their business without hiring.

Social Media

How To Start a Youtube Channel: Step-by-Step Guide

YouTube can be a valuable way to grow your audience. If you're ready to create content, read more about starting a business YouTube Channel.

Starting a Business

I Built a $20 Million Company by Age 22 While Still in College. Here's How I Did It and What I Learned Along the Way.

Wealth-building in your early twenties isn't about playing it safe; it's about exploiting the one time in life when having nothing to lose gives you everything to gain.

Money & Finance

These Are the Expected Retirement Ages By Generation, From Gen Z to Boomers — and the Average Savings Anticipated. How Do Yours Compare?

Many Americans say inflation prevents them from saving enough and fear they won't reach their financial goals.

Business Solutions

Boost Team Productivity and Security With Windows 11 Pro, Now $15 for Life

Ideal for BIZ Experiencess and small-business owners who are looking to streamline their PC setup.