Do you think somebody is lying or attempting to deceive you? Once you know how, it's pretty easy to find out when somebody is telling you the truth or deceiving you. There are many clues and hints from somebody's body language that can give away how honest they're being.
By looking at these clues you can learn if they're telling the truth or not, both police officers and experienced poker players are very good at this skill. Here are some things to look for that can help you determine whether they're telling the truth or not. Also included are some tactics that you can use to determine one's truthfulness.
Body language studies show that people tend to touch their face and scratch their nose when they lie. Looking at somebody's hands and how they use them when they are talking to you can tell you a lot about the level of truth of what they are saying.
Somebody who is lying will often get defensive, an innocent person will usually go on the offensive. Pay attention to these cues and to how somebody responds to accusations that are being made about them.
Liars tend to blink a lot and don't maintain eye contact. Liars will also often look to the left, this is where ones eyes go when they are trying to construct an image or sound in their head, whereas looking to the right would indicate that they are remembering it, instead of making it up.
A liar will often skip contractions saying "I did not" instead of "I didn't". And avoid pronouns using someone's full name instead of "he" or "she". Pay careful attention to the words they use, and how the use them. If you know the person well, also note if they're speaking differently, they may be stuttering on some words, or speaking in a different tone of voice.
People who are telling the truth use many facial muscles, but people who are liars smile with just their mouth. They're smile will seem forced, the same kind when you pose for pictures and have to hold a smile.
Liars tend to keep their body posture closed by folding their arms for example. They may also unconsciously put an object between them like a cup of coffee. People who are telling the truth will seem more comfortable and will perhaps slouch a bit. Somebody who is lying will seem more rigid with their posture.
Pause momentarily before responding. If the silence makes them uncomfortable they may be lying. Try this a few times while talking to them, it could also make them more anxious each time, which shows an even higher probability that they are not telling you the truth.
If they provide more information than necessary, that's a bad sign. People tend to be overly specific when they're making something up. When somebody tells the truth, they always tell the same story for the most part. Whereas with lies, you have to consciously remember what the lie is, making it much easier to slip up if somebody is asked to repeat their story. This is one of the biggest indicators of somebody who is lying, the details will usually change every time they tell you the lie.
If you change the subject line, and they seem relieved, that's probably a red flag that they've been lying to your face. So try bringing it up again, and see if they get anxious, the more anxiety displayed when you bring up the subject again the higher the probability that they are lying.