Conversations have the power to grow or erode trust. Research in neuroscience reveals that certain words, tones and non-verbal cues can trigger either fear or safety in the brain. Leaders who develop C-IQ use inclusive language such as ‘we’, ‘us’, ‘our’ and affirming language ‘I understand’, ‘I value’, ‘I appreciate’. They avoid being dismissive ‘that’s not important’ or using negative or absolute language ‘you never’, ‘you always’. Understanding how words, tone and expression impact people neurologically gives leaders an edge in creating conversations that lead to innovation and stronger relationships.