4. Why does Mr. Hooper leave his mouth uncovered by the veil? Why does the narrator repeatedly remind us of Mr. Hooper's sad smile, "which always appeared like a faint glimmering of light, proceeding from the obscurity beneath the veil"?

Answer: The Reverend's preaching style, like his original appearance, is very ordinary so he puts on the veil and leaves his mouth uncovered to be unique and more intriguingoHe had the reputation of a good yet dull preacheroHis listeners pay much more attention to him once he has the veil on because it draws more attention.