When the Boss asks George and Lennie of their former employment and skills Lennie accidently disobeys George by speaking to the boss when earlier George told Lennie to not say a word when they meet the Boss. The Boss then gains suspicion towards Lennie because he notices he is beginning to act scared.
Alright, what is your line of work?
George then begins to speak for Lennie out of fear that the boss will realize Lennie's lack of intelligence. Georges attempt to save the situation then strikes the Boss as weird.
He's my Cousin! He was kicked in the head by a horse when he was young.
Okay well don't try no funny business, alright?
After meeting the Boss, George and Lennie are then assigned to one of the Grain Teams working under a man named Slim.
Man George am I Glad I'm not really related to you!
Don't be sticking your nose in our business
Don't worry, I have no interest in your affairs.
So your not really related?
Curley, the Bosses Son who is an aggressive, ex boxer walks into the bunk room and starts to pick an argument between George and Lennie. After showing George and Lennie he's not fond of the 2 he exits the Bunk Room.
Let the big guy talk!
Why he acting that way?
He don't like big guys. Probably because he not one.
Curly's Wife then appears, flirtatiously questioning George and Lennie if they had seen her husband, Curly. After their encounter George tells Lennie to "stay away from that bitch"