How to spot a liar [View all]
When you accuse someone and their first instinct is not to deny the accusation but to attack you or a third party, that's deceptive behavior.
When you ask someone a direct question and instead of simply answering the question they try to convince you that they are a good person, that's deceptive behavior.
"Why would I do that? I swear! I've always been a good employee! But honestly, just between you and me, ..."
When you ask someone a direct question and they respond with qualifiers like "not really", that's deceptive behavior.
When you ask someone a direct question and they start shifting in their seat or shaking their foot or scratching themselves, that's a sign that they have a fight-or-flight reflex.
When you ask someone a direct question and they portray an emotion that does not fit the situation (even for a fraction of a second), that shows a mental disconnect, a sign of mental stress.
And there's many more telltale signs. If such clues form a certain timing and pattern, you have found yourself a lie.