How To Immediately Spot A Liar The mundane way of spotting a liar is through the verbal signs of deception and reading body language. Those who are called experts reveal some of their secrets on how to look and listen for a lie. For example there are many ways people divulge their lies. First is learning what to listen for. When someone is trying to pull the wool over your eyes, they may stammer and insert funny non-words to fill the gaps in their speech using certain vowels like uh or oh. They may often stammer or clear their voice asking you “please repeat that.” And of course you must know the “why do people lie?” These signs should be important to the average person, but the transcendental way of learning the truth is never wrong.