How to Detect Lies
And Become a Human Lie Detector.


Warning: sometimes ignorance is
bliss. After gaining this knowledge,
you may be hurt when it is obvious
that someone is lying to you. The
following deception detection
techniques are used by police,
forensic psychologists, security
experts and other investigators.
Introduction to Detecting Lies:
This knowledge is also useful for
managers, employers, and for
anyone to use in everyday
situations where telling the truth
from a lie can help prevent you
from being a victim of fraud/scams
and other deceptions.

This is just a basic run down of
physical ( body language) gestures
and verbal cues that may indicate
someone is being untruthful.


Remember: these signs don't
indicate someone is lying, just that
they are more likely to be lying.
If you got here from somewhere
else, be sure to check out our Lie
Detection index page for more info
including new research in the field
of forensic psychology. Last update:


Signs of Deception:

Body Language of Lies:

• Physical expression will be
limited and stiff, with few arm and
hand movements. Hand, arm and
leg movement are toward their
own body the liar takes up less
space.

• A person who is lying to you will
avoid making eye contact.

• Hands touching their face, throat
& mouth. Touching or scratching
the nose or behind their ear. Not
likely to touch his chest/heart with
an open hand.
Emotional Gestures & Contradiction

• Timing and duration of emotional
gestures and emotions are off a
normal pace. The display of
emotion is delayed, stays longer it
would naturally, then stops
suddenly.

• Timing is off between emotions
gestures/expressions and words.
Example: Someone says "I love it!"
when receiving a gift, and then
smile after making that statement,
rather then at the same time the
statement is made.

• Gestures/expressions don’t match
the verbal statement, such as
frowning when saying “I love you.”

• Expressions are limited to mouth
movements when someone is
faking emotions (like happy,
surprised, sad, awe, )instead of the
whole face. For example; when
someone smiles naturally their
whole face is involved: jaw/cheek
movement, eyes and forehead push
down, etc.
Also see our article on micro
expressions & lying.
Interactions and Reactions

• A guilty person gets defensive. An
innocent person will often go on
the offensive.

• A liar is uncomfortable facing his
questioner/accuser and may turn
his head or body away.

• A liar might unconsciously place
objects (book, coffee cup, etc.)
between themselves and you.
Verbal Context and Content

• A liar will use your words to
make answer a question. When
asked, “Did you eat the last
cookie?” The liar answers, “No, I did
not eat the last cookie.”

•A statement with a contraction is
more likely to be truthful: “ I didn't
do it” instead of “I did not do it”

• Liars sometimes avoid "lying" by
not making direct statements. They
imply answers instead of denying
something directly.

• The guilty person may speak
more than natural, adding
unnecessary details to convince
you... they are not comfortable
with silence or pauses in the
conversation.

• A liar may leave out pronouns
and speak in a monotonous tone.
When a truthful statement is made
the pronoun is emphasized as
much or more than the rest of the
words in a statement.

• Words may be garbled and
spoken softly, and syntax and
grammar may be off. In other
words, his sentences will likely be
muddled rather than emphasized.

• The use of distancing language.
Also see our article on Statement
Analysis for a more in-depth look at
word analysis
techniques used by interrogators.
Other signs of a lie:

• If you believe someone is lying,
then change subject of a
conversation quickly, a liar follows
along willingly and becomes more
relaxed. The guilty wants the
subject changed; an innocent
person may be confused by the
sudden change in topics and will
want to back to the previous
subject.

• Using humor or sarcasm to avoid
a subject.



Final Notes:
Obviously, just because someone
exhibits one or more of these signs
does not make them a liar.
The
above behaviors should be
compared to a persons base
(normal) behavior whenever
possible.

Most lie detecting experts agree
that a combination of body
language and other cues must be
used to make an educated guess on
whether someone is telling the
truth or a lie.

.............

Culled from
www.blifaloo.com/info/lies.php

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