How does Steinbeck develop the character of George throughout Of Mice and Men?

George's development is going to be throughout the novel
because he is one of the primary characters in Steinbeck's work.  If you are looking for
specific areas where his character is enhanced and "fleshed out" in great detail, pay
attention to George's conversation with Slim helps to form much of chapter 3.  The
discussion between the two men is one of the first significant moments where George
talks about himself and how he feels responsible for Lennie as well as his own
background.  Pay also close attention to how Steinbeck describes Slim as a priest in
this setting.  This helps to emphasize how George really does not open to anyone and
when he does it is a moment where much is revealed.  George is shown to be a character
that balances the demands of real world, and its propensity to deny dreams, with his own
visions of dreams that allow a transformative vision of reality to present itself.  It
is here where George is further developed in that he really wishes to embrace the world
of dreams, but is constantly undercut by the demands of a real world condition that
forces him to look out for others and put his own aspirations on
hold.