&gt; According to one study, just 50 out of 20,000 people managed to make a correct judgement with more than 80% accuracy. Most people might as well just flip a coin.<p>Oh the irony surrounding statistics and how often it is used to lie - case in point: the mode is completely absent and some useless factoid is presented instead.<p>That&#x27;s not to say that argument is false (&quot;you can&#x27;t use body language&quot;); merely that because of the useless information we don&#x27;t know if it&#x27;s true either.