I need help on a hook for my of mice and men essay please help me!!!

I assume your hook is at the beginning. I'd go to the obvious character of Curley's wife. Consider something like,

In Steinbeck's Of Mice and Men, the character of Curley's wife wanders the ranch desperate for a smile or even a look of acknowledgement that she even exists. She is a ghost in a world of men, the property of one man.

what is a good hook if george did the right thing by killing lennie