How to become a better liar
Listen more than you talk - Many of the best liars are better listeners than they are talkers and allow the person talking to "fill-in" any need gaps in the conversation, necessitating fewer lies being required.
Maintain eye contact- People are taught to believe that a liar won't make eye contact or will do so infrequently. Merely by looking people in the eye, many of the boldest lies are often told.
Remain calm - People are taught that liars will become upset, talkative or nervous. If you are none of the three and you remain calm, only people adept at lie detection will be able to detect deceit.
Maintain the same vocal tone - People are taught to detect falsehoods by changes in vocal timbre or tenor. Remaining in a normal speaking pattern will make people believe that you are being truthful.
Act serious - People are trained from youth to respect authority. The most deceitful person in the room can be the person who maintains the most serious demeanor because people equate seriousness with authority and authority with honesty.
Put a kernel of truth in your untrue statements - Most people will believe a lie that has a kernel of truth in it. If one part of a statement is true, most people will accept that the entire statement is probably true.
Throw in some jargon - If you sprinkle your speech with moments of jargon (even if incorrect) most people will assume that you know what you are talking about (even if you do not)
Ask questions - Most people don't think that liars are going to ask questions. They assume that liars will try to fill in the gaps and they are caught off guard when the liars actually question them.
Act tired - People will assume that deceit is actually someone being tired if they feign the act correctly. Most people are either tired themselves or will be able to empathize with how you are feeling.
Act irritated - People will often avoid irritated people or will only have short conversations with people that are acting irritated. Feigning irritation will shorten questioning and will actually make people accept statements that they normally would find to be suspicious.
I don't have an issues with listing any of the above as knowing how people lie will actually makes lie detection
easier
. Spotting the above behavior upon being confronted with it and following with detailed questioning will actually uncover a great deal more deceit than using traditional "lie detection" tools such as looking for lack of eye contact or shifting of position.
Source: Jon Mixon, Quora (http://www.quora.com/Lies-and-Lying/How-can-I-become-a-better-liar/answer/Jon-Mixon-1)















