Who is lying

Can You Tell
Who is lying

Techniques to telling if someone is lying are often used by police, and security experts. This knowledge is also useful for anyone to use in everyday situations where telling the truth from a lie can help

"Sorry I'm late, but I had a flat tire. Really, you wouldn't believe it. My tire was so flat."

Repeating parts of a fabricated story over and over doesn't make them any more factual. Liars are more likely to repeat words and phrases.
Hearing liars' voice, talking with a higher pitch than usual. The change-up is caused by the tension in vocal chords.