What rhetorical devices are used to reveal Zhuge Liang's talent in Three Visits to the Maolu?

Visiting the Maolu reveals Zhuge Liang's talent with figurative rhetoric.

"Visiting Mao Lu" comes from Luo Guanzhong's China classic novel Romance of the Three Kingdoms. It tells the story of Liu Bei's thirst for talent and asking Zhuge Liang to come out of the mountain to help Shu Han. Now, "three visits to the thatched cottage" is also to recruit talents, not ashamed to ask questions, and humbly ask questions.