Blinking
Blink rates can indicate escalated anxiety or controlled contempt and a range of emotions in between. Normal blink rates range from two to ten times a minute depending on relative humidity and eye moisture. Blink rates decrease when the eye is engaged in reading or watching a screen, down to 3 to 4 times a minute.
A blink rate baseline can be derived by counting blinks per minute at resting or unescalated levels. More accurate blinks rates are determined over a period of time, averaging blink rates from at least a half dozen samples.
Increased blink rates in a subject can be a result of escalated anxiety, emotion, or result from excessive eye movement. Decreased rates stem more from the alpha-male stare, the inherent decoy from being detected in a lie or escalation.
Movement
Excessive or dormant eye movement beyond an established baseline can indicate escalation.
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