AdvertisementMental and emotional liars use phrases like these to try to convince you they're being honest1. These words can make you think they’re being honest, but it could be an attempt to hide their mental and emotional lying. AdvertisementMental and emotional lying cuts deep. Mental and emotional liars want to make you question your own judgment instead of their behavior. It gets even more complicated because sometimes liars lie so much that they do alter their own memories.