Lennie description part 4

In this chapter, Lennie stumbles upon Crooks the black stable buck. Crooks get mad at Lennie because he has stumbled into his house, and asks him to leave. Lennie acts very innocently. "' Nothing-I seen your light. I thought I could jus' come in an' set'". Crooks sees how Lennie is and invites him in to talk. After a talk Lennie interrupts  Crooks like he wasn't listening "' Goerge says we're gonna have alfalfa for the rabbits." This shows how Lennie can just zone out in the middle of a conversation and not even know what happening.