Nine Ways to Change People Without Giving Offense or Arousing Resentment

• Begin with praise and honest appreciation.
• Call attention to other people's mistakes indirectly.
• Talk about your own mistakes first.
• Ask questions instead of giving direct orders.
• Let the other person save face.
• Praise every improvement.
• Give them a fine reputation to live up to.
• Encourage them by making their faults seem easy to correct.
• Make the other person happy about doing what you suggest.

Dale Carnegie