As I say the fictional Dr. Cal Lightman, the truth is that you mind all day. And according to a survey conducted in the UK, this is not unique to real life: people lie on Twitter too. Astonished? And me neither. The survey questioned 2,000 British internet users and found that only 20% do not lie both on Twitter and in real life. With regard to messages via phone, the survey found that men are 21% more dishonest than women.