Assalamu Alaikum WaRahmatullahi WaBarakaatuhu
Shaikh Maulana Muhammad Ilyaas (R.A) said:
" While giving dawah, the face of ourself should be towards Allah only,and not towards listeners. In other words, when talking to people this thought must be present in our minds that we have come out neither for any of our personal work, and nor by our own will, we have come out by Allah's command and for His work; and that only Allah will make our listeners accept our talk.
While talking to people if we bear this in mind , insha-Allah, neither will we get angry at the negative response of listeners or lose hope. "
wa'alaikum salam waRahmatullahi WaBarakatuhu