In a Tradecraft episode by WIRED, a former FBI agent reveals techniques for reading body language—an essential skill in law enforcement and interrogation. Here’s a brief overview of the key insights:
1. Establish a Baseline
Before interpreting body language, it’s crucial to know someone’s normal behavior. Any significant deviation from their usual mannerisms can signal stress, discomfort, or deception.
- Example: A calm person who suddenly avoids eye contact or fidgets may be nervous or hiding something.
2. Microexpressions
These fleeting, involuntary facial expressions expose true emotions, even if someone tries to conceal them. They are difficult to fake, making them a reliable indicator of someone’s feelings.
- Example: A suspect showing a brief flash of fear or anger may be feeling threatened.
3. Incongruence
When words and actions don’t align—like nodding “yes” but saying “no”—this mismatch is a clear sign of potential deception.
- Example: Someone claiming confidence but displaying closed body language may be unsure or defensive.
4. Posture and Positioning
Engagement is shown through open posture and leaning forward. Disinterest or discomfort is indicated by crossed arms, leaning back, or angling the body away.
- Example: A person turning away during an interview may feel defensive or disengaged.
By observing these non-verbal cues, you can gain deeper insights into someone’s true feelings and intentions.