EYE CONTACT: A bad liar feels uncomfortable with deception and may use tactics such as rubbing their eyes to avoid eye contact. If a pal does this while they're telling you about how fit last night's date was, you can assume they're being dishonest.
The opposite of avoiding eye contact is the fixed stare and this can also be a giveaway. This liar is determined to convince you they are telling the truth. If they hold eye contact for more than SIX seconds be suspicious about what they are telling you.
The fact liars can't look victims in the eyes is a myth. A liar often overcompensates eye contact in an attempt to convince the victim they're not making things up.
WHERE THEY LOOK: When right-handed people are lying, they tend to look right. With left-handers it's the other way round.
WHAT THEY SAY: How liars answer questions can also expose them and you should look out for what is called "a contraction". So for example if a truthful person is asked: "Did you falsify this report?" they will reply "No, I didn't."
Whereas a liar will have no time to think about the process and simply mirror the questioner's language and stretch out the sentence, such as: "No, I did not do that."
HOW THEY STAND: Liars will tend to cross their ankles or arms - but a lot of people are aware of that body language and will try to keep a more open posture to put victims off the scent.
Observing a person's stance when they're standing up can be a good indicator. A liar may deliberately position their posture at a right angle to avoid standing in an open position. If they do, they could be telling porkies.
WATCH THEIR HANDS: When kids tell a lie, they will usually cover their mouth and this is worth remembering.
Any kind of gesture from someone's hands towards the upper chest, face or head area - like scratching their head - can mean untruths.
Also, if somebody is holding something like a coffee cup or folder between themselves and you, watch out. They could be using it to create a subconscious barrier to hide behind.
WATCH THEIR LIPS: People's lips will go pale in times of stress. And if they are red-faced or white as a sheet while speaking to you this can be a giveaway too. This happens in response to the body's natural flight or fight response in times of pressure, which can be sparked by lying.
TWITCHES: Liars often twitch which can be one of the easiest signs to spot. Often it's the liar's eyelids which twitch or it could be a tiny muscle in the cheek or neck.
Males have an area at the bottom of the nose which actually twitches when we know we haven't told the truth.
WHEN WOMEN LIE: The biggest girlie giveaway is blushing and can be a sign your missus is lying.