02/04/2026
Episode 2: What liars do differently – Language, behaviour, and the truth
In Episode 2 of Fool Me Twice, the focus shifts from why people lie to how liars actually behave compared to truthful people.
The episode begins with a familiar question, “How are you?” showing how even everyday interactions involve subtle forms of truth editing. This instinct to manage information sits on the same spectrum as more deliberate deception.
Drawing on police interview experience, the hosts explain that truthful people communicate with natural detail and ownership. They describe what they saw, heard, and felt because they genuinely experienced it. Liars, however, must construct their stories, which creates mental strain. This often shows up as vague language, tense shifts, evasiveness, or answering questions with questions.
A key insight is that people rarely jump straight to outright lies. They first avoid, edit, or redirect information, only lying when necessary. As pressure builds, inconsistencies begin to appear across language, behaviour, and tone.
The episode also challenges common myths. Confidence does not equal honesty, and real lie detection is not like shows such as CSI: Crime Scene Investigation. Instead, it relies on listening, rapport, and recognising behavioural patterns.
Ultimately, the takeaway is clear: truth flows more naturally, while lies require effort. Detecting deception is about spotting patterns and changes in behaviour, and recognising that everyone, not just criminals, engages in it.