10 Ways to Catch a Liar
Experts have 10 tips that can let you know if someone isn't telling you the whole truth.
Tip No. 6: Watch for Microexpressions
When Joe Schmo has a gut feeling, Paul Ekman, a renowned expert in lie
detection, sees microexpressions.
"A microexpression is a very brief expression, usually about a 25th of a
second, that is always a concealed emotion," says Ekman, PhD, professor
emeritus of psychology at the University of California Medical School in San
So when a person is acting happy, but in actuality is really upset about
something, for instance, his true emotion will be revealed in a subconscious
flash of anger on his face. Whether the concealed emotion is fear, anger,
happiness, or jealousy, that feeling will appear on the face in the blink of an
eye. The trick is to see it.
"Almost everyone -- 99% of those we've tested in about 10,000 people --
won't see them," says Ekman. "But it can be taught."
In fact, in less than an hour, the average person can learn to see
Tip No. 7: Look for Contradictions
"The general rule is anything that a person does with their voice or
their gesture that doesn't fit the words they are saying can indicate a
lie," says Ekman. "For example, this is going to sound amazing, but it
is true. Sometimes when people are lying and saying, 'Yes, she's the one that
took the money,' they will without knowing it make a slight head shake 'no.'
That's a gesture and it completely contradicts what they're saying in
These contradictions, explains Ekman, can be between the voice and the
words, the gesture and the voice, the gesture and the words, or the face and
"It's some aspect of demeanor that is contradicting another aspect,"
Ekman tells WebMD.
Tip No. 8: A Sense of Unease
"When someone isn't making eye contact and that's against how they
normally act, it can mean they're not being honest," says Jenn Berman, PhD,
a psychologist in private practice. "They look away, they're sweating, they
look uneasy ... anything that isn't normal and indicates anxiety."
Tip No. 9: Too Much Detail
"When you say to someone, 'Oh, where were you?' and they say, 'I went to
the store and I needed to get eggs and milk and sugar and I almost hit a dog so
I had to go slow,' and on and on, they're giving you too much detail," says
Too much detail could mean they've put a lot of thought into how they're
going to get out of a situation and they've crafted a complicated lie as a