Hawzah News Agency – The commander of the faithful, Imam Ali peace be upon him says:

إنَّ أحْسنَ ما يَأْلَفُ بهِ النّاسُ قلوبَ أوِدّائهِم، ونَفَوا بهِ الضِّغْنَ عن قُلوبِ أعْدائهِم: حُسنُ البِشرِ عند لِقائهِم، والتَّفَقُّدُ في غَيبتِهم، والبَشاشةُ بِهم عند حُضورِهِم.

'The best thing with which people can win the hearts of their loved ones and remove the animosity from the hearts of their enemies is cheerfulness upon meeting, asking about them in their absence, and smiling at them in their presence.'

Source: Bihar al-Anwar, v. 78, p. 57, no. 124