How should one invite people to Islam?

All praise is due to Allah.

Allah created mankind and settled them on Earth, providing for their needs and revealing to them a methodology for life. Islam is the last of the heavenly religions, the Quran is the last of the heavenly books, and Muhammad, peace and blessings be upon him, is the seal of the prophets. Calling to Islam is one of the best deeds, as it involves guiding people to the straight path. It is a noble mission that requires knowledge, patience, wisdom, and gentleness. The caller to Islam has a great reward, just as he must endure harm, as the Prophet, peace and blessings be upon him, endured it. There is no rectification for the Muslim nation except by following this religion and conveying it to all people.