Might seem obvious, but most people aren’t aware enough to recognize their own nervous habits and then consciously fight to conceal them.
Yes, we know, this feels like it’s out of a bad mob movie, but it’s still one of most common signs of raised stress levels.
A very common indicator of deceit or guilt.
And it they can manage to look you in the eye, check for this sign of high stress levels.
If someone has to lie on the spot, they’ll usually take an extra second or two longer than normal to collect their thoughts. Listen for multiple pauses.
Another sign of increased stress levels the studies have found to be more common in liars than truth tellers.
In normal conversation, if your companion uses qualifiers like ‘to be honest’ or ‘I swear’ it implies that they don’t expect to be believed or trusted. Implication of lie is higher.
And will never ever ever (probably) fall for a lie ever again.