In chapter 2 of What Every Body is Saying, Joe Navarro explains that many everyday “self-touch” actions—like rubbing the forehead, biting the lip, or stroking the neck—are outward traces of how the brain manages emotion and survival, and that understanding this brain–body link is the key to decoding nonverbal behavior.
The Brain as the Source of All Behavior
Navarro argues that nearly everything we do (aside from a small set of reflexes) is directed by the brain, which means observable behavior can be treated as external evidence of internal processing. He introduces the “triune brain” concept: a survival-oriented older system, the limbic system, and the newer thinking brain (neocortex). For reading people, he places special emphasis on the limbic system because it reacts quickly and automatically.
The Limbic System as the “Honest” Driver of Nonverbals
A central claim of the chapter is that limbic reactions happen in real time and without deliberate control, which makes them difficult to fake consistently. Because the limbic system is tightly tied to emotion and survival, it tends to reveal genuine comfort, discomfort, and threat responses through the body—often more reliably than spoken language, which the thinking brain can shape to mislead or socially smooth situations.
The Survival Sequence: Freeze, Flight, Fight
Navarro reframes the classic “fight-or-flight” idea by adding the first and most common step: freeze. He describes these three limbic responses as a hardwired sequence used to handle perceived danger or stress:
Freeze
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The body becomes still to avoid detection and to buy time for assessment.
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In modern life, this can look like suddenly “locking up,” holding the breath, going rigid in a chair, or minimizing movement when feeling exposed (for example, during questioning or when caught doing something wrong).
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He also notes how freeze responses can spread through groups via mimicry—one person’s sudden stillness can trigger others to freeze too.
Flight
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When freezing isn’t enough, the body tries to create distance.
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Modern “flight” often appears as leaning away, turning the feet toward an exit, angling the torso away, using objects as barriers, or blocking the face/eyes.
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Navarro stresses these are usually signs of discomfort rather than proof of deception.
Fight
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If neither freezing nor distancing works, the limbic system can shift into aggression.
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In contemporary settings, this often shows up as verbal combat, intimidation displays, posture and eye threats, or invasions of personal space rather than outright physical violence.
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He advises avoiding escalation when possible and uses nonverbal awareness as an early-warning system for potential harm.
Comfort, Discomfort, and Why They Matter
Navarro connects limbic functioning to two broad behavioral states:
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Comfort: relaxed, open, confident body language that matches ease and safety.
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Discomfort: tension, low confidence, and stress signals that suggest something is wrong or unwelcome.
He treats this comfort/discomfort lens as one of the most practical ways to interpret behavior because it helps you focus on meaning without overreaching into “mind reading.”
Pacifying Behaviors: The Body’s Built-In Stress Relief
A major portion of the chapter focuses on pacifiers (also called adapters in research): behaviors the brain recruits to calm the body after stress. Navarro frames pacifying as a self-soothing system that often follows a limbic stress reaction and can be read in real time.
What pacifiers look like
He describes a wide range of common pacifiers, including:
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Face and head soothing: rubbing the forehead, touching the mouth or lips, stroking the face, tugging at an ear, playing with hair.
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Neck soothing: touching or stroking the neck area, adjusting collars or ties, manipulating necklaces.
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Breath-based soothing: slow exhaling (sometimes with puffed cheeks).
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Sound-related soothing: nervous talking, whistling, tapping.
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Body soothing below the table: rubbing the thighs with the palms (“leg cleansing”), often missed because it’s hidden.
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Ventilation behaviors: pulling the collar away from the neck or fanning clothing to cool down during stress.
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Self-hugging: crossing arms and rubbing shoulders as a protective, calming action.
He also highlights patterns he has observed in how men and women often differ in where and how they pacify (with the important caveat that individuals vary).
How to Use Pacifiers as Reliable Clues
Navarro provides practical rules for using pacifiers responsibly:
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Learn to spot pacifiers consistently.
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Establish a person’s baseline for how often they self-soothe.
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Ask what trigger likely preceded the pacifier (a topic, question, person, or moment).
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Pay attention to increases in frequency or intensity as stress rises.
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Use pacifiers to identify where discomfort is, not to “prove” lying.
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Note location (face/neck tends to appear with higher stress than lower-body soothing).
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When appropriate, gently test topics and watch whether pacifying spikes, which can guide follow-up questions.
The Chapter’s Takeaway
Navarro ends by reinforcing that our limbic legacy gives us two advantages: it protects us through automatic survival responses, and it produces observable patterns—especially pacifiers—that help us infer comfort and discomfort in others. He notes that some signals will become obvious with practice while others remain subtle, and he transitions to the next chapter by pointing readers toward the importance of the legs and feet as especially revealing parts of the body.