Say something Good or remain silent. Loud voice and chattering are bad merits. You have to be sweet-worded, tender in expressing yourself. A good word has its own magic in winning the hearts of your enemies, how powerfully it would work then with your brothers' hearts!! "Repel (Evil) with what is better: Then will he between whom and thee was hatred become as it were thy friend and intimate " (Surah Fussilat 41:34) .The Prophet (PBUH) said, "Whoever believes in Allah and the Last Day should speak good or be silent" (Mawtta Imam Malik). Abu Abdullah Jadali reported that he asked Sayyidah Aisha (RA) about the manners of Allah’s Messenger She said, He was never indecent of speech or of manners. He never spoke loudly in the markets. And, he never returned evil with evil, but he forgave and overlooked.’ (Jami Tirmidhi)