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less gaze aversion than truth-tellers. According to Granhag & Strömwall, there are three approaches to non-verbal deceptive behavior. The first is the emotional approach, which suggests that liars will alter their behaviors based on their own emotional feelings. For example, if a subject is lying and they begin to experience guilt, they will shift their gaze. The second approach is the cognitive approach, which suggests that lying requires more thought than telling the truth, which in turn, may result in a liar making more errors in speech.

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