I’m a psychiatrist and these are the common techniques used by liars to conceal deceit

How do you know if you are being told the truth, or if you are simply being fed a very convincing lie?

Some people can be frighteningly good at dishing out deceptions and it can seem almost impossible to distinguish truth from fiction – but an expert says there are some surefire ways to spot deception.

London-based forensic psychiatrist Dr Sohom Das, 44, has a YouTube channel called A psych for painful mindswhere he covers a range of mental health and crime-related topics.

In the NHS doctor's broadcasts he discusses what he has learned from some of the cases he has come across, with one episode focusing on 'usual signs of deception'.

Dr. Sohom Das (pictured) is a forensic psychiatrist from London who also creates YouTube content on his channel A Psych for Sore Minds

In the video, Dr. Das outlines some important signs to look out for that could mean someone isn't telling you the truth.

The crooked appearance alone can be a sign, he explains. “In general, liars look more anxious.”

Also insist on facts, he advises, because liars often seem less certain about the details and instead go for general information.

And third, Dr. Das says that liars “will not generally correct themselves on small details”; they will stick to their story and not deviate.

He explains, “And that's because they overcompensate, and they paradoxically think that by correcting themselves they're making themselves look more guilty.”

In reality, he says, “a mild degree of self-correction and self-doubt is natural and consistent with truthful thoughts.”

He points out that it is not always easy to know when someone is lying, as subtlety is often a trick used by good liars.

Dr. Das discusses how poker players can convince a fellow player that they are not a threat at a card table – using very mild clues of cheating, which can be very vague.

Dr. Sohom Das can be found at Tweet, InstagramAnd TikTokas well as YouTube.