A restaurant diner ignoring a healthy salad and ordering a double cheeseburger, representing the truth of actual customer behaviour
Consumer Thinking

Can Customer Behaviour Reveal a Better Marketing Strategy?

Rajnish Kumar · · 3 min read

Stop guessing. Learn how tracking brilliant customer behaviour reveals the ultimate secret to driving massive sales.

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Key Moments

85% Sales Boost from Behavioral Insights

Companies using behavioral insights can increase sales by up to 85% compared to rivals.

McDonald’s Healthy Menu Failure

Investing in healthy salads and fruit ignored customers who chose burgers instead, wasting millions.

Hidden Delivery Fee Impact

Unexpected delivery fees halted shirt purchases; removing them restored sales instantly.

Instagram Product Pivot

Founders scrapped location features after users only wanted photo sharing, reshaping the whole app.

A technology team launches a new fitness app with one hundred different exercise videos. The founders expect everyone to watch the daily workouts. But millions of users open the app just to use the simple step counter on the front page. They ignore the videos entirely. This sharp difference shows exactly why tracking customer behaviour remains so important. 

When a business owner asks buyers what they want on a feedback form, the written answers rarely match reality. According to data research by McKinsey & Company, organisations using behavioural insights increase their sales by 85% compared to rivals. Studying actual customer behaviour tells a brand exactly where to spend its money. Watching actions always reveals a highly profitable business plan.

Collecting cash becomes very easy when a brand stops guessing and starts watching real actions.

Mechanics of Customer Behaviour

Many large companies lose money because they trust written feedback more than actual behavior. Years ago, McDonald’s asked thousands of diners what they wanted to eat. The diners said they wanted healthy salads and fresh fruit. 

The restaurant spent millions adding these new items to the menu, but almost nobody bought the healthy food. The same diners walked in and ordered double cheeseburgers instead.

This costly mistake happens when brands ignore true customer behaviour. People often give answers that make them look healthy on paper. But their final purchases reveal their real desires. A smart seller stops sending long forms. He simply watches what the buyer actually touches and buys every single day. 

Harvard Business Review and behavioral economists often warn companies not to rely on surveys because of the huge gap between “stated preferences” (what people say on forms to look smart, healthy, or polite) and “revealed preferences” (what their actual buying habits show).

This rule applies perfectly to online shopping. A clothing brand notices a massive drop in daily sales. The owner thinks his main prices are too high. But then he looks at the website data carefully. He sees thousands of visitors adding shirts to their carts. Then they close the page exactly when the delivery fee appears on the screen.

This specific customer behaviour proves the main shirt price is completely fine. The sudden delivery charge is the actual problem stopping the sale. As we discussed in our recent article about consumer doubt, removing hidden fees builds immediate trust. The clothing brand changes its strategy instantly.

The owner slightly raises the price of the main shirt but offers free delivery to everyone. Sales recover immediately. Watching the exact point where a buyer stops offers incredible insight. When a company adjusts its checkout rules based on strict customer behaviour, visitors feel comfortable and pay their bills.

Sometimes, watching a buyer can force a company to completely change its product. When Instagram first launched, it was a complicated location-sharing tool. After a few weeks, the founders noticed something strange. Users ignored the main location features entirely. They only opened the app to share filtered photos with their friends.

The founders did not force users to follow the original rules. They respected this new customer behavior. They removed the location features entirely and rebuilt the whole application strictly for photo sharing. This direct response to actual customer behavior created a massive global company very quickly.

A stubborn business owner argues with his buyers. He tries to make them use his item in a specific way. A highly successful owner simply watches the crowd. He studies their daily habits closely. Then, he changes his own marketing strategy to fit their exact customer behaviour. Collecting cash becomes very easy when a brand stops guessing and starts watching real actions.

Loved this article? Read more insightful articles on Brand Custodian.

–Written by Rajnish Kumar, a copywriter and strategist with a background in fast-paced journalism, who explores the gap between what brands promise and how consumers actually behave.

Questions Answered

Why does relying on customer surveys often lead to poor business decisions?

Surveys miss true behavior; real actions reveal actual preferences.

How much can a company boost sales by using behavioral insights?

Up to 85% increase versus rivals.

What hidden cost caused a clothing brand's sales to drop?

Unexpected delivery fees; removing them restored sales.

How can observing user behavior reshape a product?

Instagram pivoted from location sharing to pure photo sharing.

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