What makes a person a liar? In my life, I've had many people lie to me. First off my parents who told me that Santa, the Easter Bunny, and the Tooth Fairy were real. I've had people lie to me to protect my feelings and withhold information that they thought at the time I didn't need to hear. But I never thought of them as liars, just people maintaining my childhood and having my best interest at heart. I guess to me a liar would be someone that could look you straight in the eyes with no regard to your feelings and tell you something untruthful to only protect themselves or make themselves look better. Narcissistic liars are the ones who do all that but actually, believe their lies and establish a concrete fictional story that they tell the world to either make themselves look good or to gain sympathy from others but lack empathy.