"Do not rebuke a scoffer, lest he hate you. Rebuke a wise man, and he will love you." (Proverbs 9:8)

A wise person is someone who continuously wants to grow. He appreciates when you point out what he is doing wrong. His goal is self-improvement, and he welcomes every opportunity to become a better person.

Be wise. Be open to suggestions on how you can improve. Thank the person who gives you positive suggestions… even if it's not worded in the best the way.