A lie is the absence of truth, fact and accuracy in a statement. That means by definition, lies lack substance. Full of words, but with no real information.
One of the most effective methods of detecting a deceptive person is when they talk a lot but don’t really say anything. The sentences are flowing but nothing of substance is materializing.
This is particularly true with skilled or prepared liars.
When asked a question, a person might talk openly and without hesitation but never actually answering the question – deflecting or changing the subject. Talking fast, using too many filler words or unnecessarily long words and never reaching a point or conclusion.
Speech quantity over quality.
A person that’s actively being deceptive will deliberately talk in this manner to “run out the clock”, hope you forget the question / subject or trick you into thinking they answered the question.
Some people naturally ramble on as it’s just the way they speak or it could mean the person is nervous for a reason that has nothing to do with deception.
But when specifically applied for lying, you should be able to discern the changes in their speech patterns and recognize it as an indicator of deception.
The truth is said without pressure of needing to justify or back up its validity from the perspective of the speaker. Whereas lies come with the pressure of it having to be justified or validated.
The truth has greater substance over lies but are conveyed in shorter and more concise sentences.
Lies require imagination, creation and convincing.
Which often results in long-winded explanations and stories that lack interpretation and plot, respectively.
Words + No Facts = Deception = No Substance