How to tell whether a person is lying or telling you the truth?

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Discussion Overview

The discussion revolves around identifying signs of deception in individuals, exploring various theories, methods, and personal experiences related to lie detection. Participants share their thoughts on non-verbal cues, the reliability of lie detection machines, and the complexities involved in discerning truthfulness.

Discussion Character

  • Debate/contested
  • Exploratory
  • Technical explanation

Main Points Raised

  • Some participants suggest that signs such as eye movement, pupil dilation, and voice intonation may indicate lying, while others express skepticism about the reliability of these cues.
  • One participant mentions that lie detection machines can misinterpret nervousness as deception, raising questions about their accuracy.
  • Another participant claims to have experience with lie detection machines, asserting that they do not produce incorrect results when functioning properly.
  • Some argue that a skilled liar can pass a polygraph test, while an honest person may fail due to anxiety, suggesting inherent flaws in the method.
  • Humorous suggestions are made about unconventional methods for detecting lies, including exaggerated scenarios and hypnosis.
  • There is a mention of the variability in individual reactions to lying, indicating that personal knowledge of a person's behavior may influence detection.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the effectiveness of lie detection methods, with multiple competing views presented regarding the reliability of non-verbal cues and lie detection machines.

Contextual Notes

Some claims about lie detection machines and their accuracy are challenged, but no definitive evidence is provided to support or refute these claims. The discussion reflects a range of personal experiences and opinions without a clear resolution.

  • #31
How to tell whether someone is lying or not.

Observe their body movements to tell whether someone is lying or not.

1.hand across the mouth; a quick brush of fingers across the lips
2.restricted movements
3.lip licking
4.nervous cough
5.blushing
6.erratic breathing
7.foot tapping
8.slight fidgeting
9.avoiding eye contact
10.eyes shut
11.flattening tones

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