The mountains were described as "strong and rocky", the river as "scummy" and the trees as "willows fresh and green with every spring, carrying in their lower leaf junctures the debris of the winter's flooding
George was "small and quick" while Lennie was "huge with wide sloping shoulders"
"Jesus Christ, you're a crazy bastard". George is easily annoyed at Lennie's stupidity.
"I could pet it with my thumb while we walked along" Lennie has a fondness for soft animals but he unintentionally kills them
Loneliness: "Guys like us who work on ranches are the loneliest guys in the world"
Friendship: "But I wouldn't eat none, George, I'd leave it all for you."
"We could've had a nice ranch to live at if you hadn't screwed up!"
Prediction: Lennie will eventually do something stupid that will cause him and George to get fired.