On Leadership: How to Change People without Offending or Arousing Resentment (by Dale Carnegie)
- Begin with praise and honest appreciation.
- Call attention to people’s mistakes indirectly.
- Talk about your own mistakes before criticizing the other person.
- Ask questions instead of giving direct orders.
- Let the other person save face.
- Praise every improvement.
- Give the other person a fine reputation to live up to.
- Use encouragement. Make the fault seem easy to correct.
- Make the other person happy about doing what you suggest.