The Question and Answer section for Of Mice and Men is a great resource to ask questions, find answers, and discuss the novel.
By a "hook" do you mean something in your introduction to attract the reader? I'm not sure this is necessary if you are doing an academic expository. Still , here is my take on the relationship:
George has to look out for Lennie and take care of...
Lennie and George share the dream about the rabbits (Lennie's dream) or the farm (George's dream).
In Chapter One, Lennie requests that George “tell about the rabbits,” which is his shorthand for “talk about how things will be for us in the...
Crooks tells Candy to forget about what he said about joining the farm. Curley's wife humiliated him enough to understand that any dreams a black man like him might have, won't come true.
