just came across this video, thought it was interesting. i think it's important to examine the people in our lives to make sure we aren't being taken advantage of. i will summarize the points in the video.
Frequency - lying all the time
Motivation - such as trying to salvage reputation, gain acceptance and support, etc.
Convincing Manner - good "honest" language, creating a false sense of vulnerability
Play on sympathy - bringing up emotional hardships, time and money sacrifices, playing up "positive" qualities such as loyalty, etc. "put yourself in my shoes"
Momentary truths - these "truths" only serve for a moment, for example as flip flopping sides of beauty vlogger drama when the narrative fits their agenda
Trophies - wanting to flaunt the success of your lies, for example with website traffic statistics
Own Language - common phrases mean something else to the liar, for example "zero motive" may mean "bragging rights and ego boost"
Denial & Minimization - when lies are discovered, they deny, shift the blame and/or focus, or claim you are imagining things/being politically brainwashed
Addiction - addicted to deception, they do not stop lying and have no intentions on doing so, no matter how many times they've apologized
Personality traits - manipulative, lack empathy, desire to dominate, irresponsible, narcissistic, remorseless, and charming (to some)