Because micro expressions are involuntary, the person cannot deny the physiological event. They will confess the underlying thought, giving you the power.

. As Sarah spoke the word "win-win," Arthur noticed a fleeting movement—the left corner of her mouth pulled slightly up and toward her ear for a fraction of a second.

Your team presents a risky new feature. Everyone is nodding. But the CTO shows a brief "orbital tightening" around the eyes—the marker of fear.

Because they are involuntary, they bypass the "social filter" that people use to mask their true feelings. In a business context, this is a goldmine.

Ask a question that creates emotional friction. For example: "What is the biggest risk you see in this contract that you haven't told me about?"