Lennie holds onto something (the dress, Curley's fist, Curley's wife's hair) when he's scared.
he gets mad and throws it against the wall in the room he was in.
George reassures Lennie that he is not mad and explains that he gets frustrated at times but it doesn't mean he is mad at Lennie. George emphasizes their friendship and looks out for Lennie, wanting the best for him.
George gets angry when Slim calls Lennie a cuckoo, and defends him. He tells Slim that everyone on the farm is not smart if they do not own the land.
Lennie says he will go live in a cave if George gets fed up with him and does not want him around anymore.
Lennie is alone in the barn with his puppy, which is dead. Lennie still strokes it sadly, saying, "Why do you got to get killed?
He was devastated and he knew that Lennie had killed her. He then goes on his own to find Lennie.
He strokes her hair to hard, she gets scared , he freakes out and chokes her to death trying to keep her quite.
Lennie is not aware of the power he possesses, so when Lennie kills his puppy he is not able to understand what he was just done
Lenny doesn't realize his own strength.
George tells Lennie to go back to the brush by the river and hide if he gets in trouble.
Carlson did not express any emotional reaction to Lennie's death in "Of Mice and Men." Instead, his concern was primarily focused on the practical implications of the situation, such as the repercussions of Curley finding out about Lennie's death and the impact on George.
George told Lennie to flee to the clearing by the river and wait for him to come get him, if Lennie got into any trouble. George and Lennie spent the night in the same clearing on their way to the ranch/farm.