The word 'Dawah' comes from Arabic root verb "Da'aa" which means "to call". It is compulsory for every Muslim to Call people to the right path. Prophet Muhammad (peace be upon him) said: "Convey my teachings even if it is a single sentence" [Sahih Bukhari 3461]. The Glorious Quran says "Obey Allah and obey the messenger". It is our duty to convey each and every aspect of Islam with right methodology. Allah says, "Invite all to the way of your Lord with wisdom and fair preachings..."
Every Muslim should have the belief of what Prophet Muhammad [peace be upon him] believed and the companions did. Every Muslim should call people to the right methodology which Prophet Muhammad (peace be upon him) preached and ordered companions to do. Sharing the message of Islam is the primary duty of every Muslim as it is ordered by Allah in Surah Nahl (16):125 and Allah warns us in Surah Maeda (5):10 "They who disbelieve and deny our Ayat are those who will be the dwellers of the Hellfire."
Do a prophetic job and earn a prophetic reward.