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1. Avoiding eye contact
To know that person is lying to you or not, you can just by looking at his eyes, usually people who is lying can not look at the interlocutor's eyes or hesitate to make eye contact directly. Why so? because it will be clearly visible from the eyes if he's lying, the eyes of those who lie will uncertain the direction of his view, he will look for other purposes to look at, such as looking to the right, left side or up, or downward with bowed head. If the person who talking to you do this, it's possible he's lying to you.
2. Nervousness
For people who lie, overcome this nervousness may be the most difficult thing, no exception for professional liar though, because this nervousness must have felt, it's impossible if not, because if someone lie there must be something concealed or not to be conveyed to the listener. Usually a person who is nervous to issue cold sweat, hands or feet that kept moving because not calm, and his behavior is different. Not difficult to know people who lie with this one sign.
3. Facial Expressions
When you're talking with someone, you will talk face to face, right? from there, surely you already know he is lying to you or not. People who are lying usually speak with a face that is almost expressionless, to hide the nervousness and expression lies. There are also people who show half-faced expressions, such as between smile and expressionless. Other things like biting the lips, blinking too fast, sweating, flushed cheeks can also show that person is lying, and that's usually moves by itself or body reflexes.
