What are the practical examples of applying the noble verse "And when the ignorant address them, they say, 'Peace!'" in dealing with the ignorant?

The question is unclear, but among the best examples to adhere to is a Muslim's keenness for good and upright speech, and to be characterized by forbearance.

So, "peace" (salām) means greeting, safety, and good speech. An example of this is Allah's saying: (And when the ignorant address them, they say, "Peace.")

This means that if the ignorant speak foolishly to them with evil words, they do not respond in kind. Rather, they pardon and overlook, and speak nothing but good. Their response is upright speech, or a well-known retort, or forbearance free from ignorance.