Who’s the most beloved to Allah? Prophet Muhammad (PBUH) said in a hadith that the one most beloved to Allah is the one with the best manners.
Who is the closest to Prophet Muhammad (PBUH) on the Day of Judgement? It is the one with the best manners.
Who is the one who will lead the most people to Jannah? Prophet Muhammad (PBUH) said it is the one with Taqwallah and the great manners.
What is the heaviest thing on the scale on the Day of Judgement? Prophet Muhammad (PBUH) said the best manners.
Having great manners will give us all of these rewards promised by Prophet Muhammad (PBUH) on the Day of Judgement. We should practice these great manners in public and in private with our own family.