Communication expert Jefferson Fisher recently revealed a key word that liars often use, 'never', which can indicate dishonesty. Fisher shared various speaking techniques and courtroom-tested tricks to help identify deception, such as listening for extreme language like 'never' and 'always'. He also emphasized the power of silence in conversations to prompt reflection and expose inconsistencies in a dishonest person's story. Fisher's insights on effective communication during conflict and the importance of understanding over winning arguments were well-received by viewers of the podcast.