SORT OF DEEDS!!
Narrated 'Abdullah bin 'Amr رَضِي اللَّهُ عَنْه:

A man asked the Prophet صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ,

"What sort of deeds or (what qualities of) Islam are good?"

The Prophet صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ replied,

'To feed (the poor) and greet (As Saalam Mualaikum Warahmatullah Hi Wabarakatahu) those whom you know and those whom you do not Know.

[Al-Bukhari, Vol 1, Book 2,# 11]

Da'wah ALLAH (سُبْحَانَهُ وَتَعَالَى)