What is a excerpt and what’s the definition of it

Read the excerpt from “the railroad earth.” o well anyway i'll be learning eventually to like the railroad and sherman will like me some day, and anyway another day another dollar. the narrator of this excerpt can best be described as friendly.optimistic.wealthy.intelligent.

Ineed the answer asap composition or ideas about "the day i ran away" with 500 words

In the following conversation, which group discussion technique does emily most clearly show?