Answer: He instructs Lennie to not look at her or talk to her. What does George say he's scared he'll do? He's scared he will fight Curley instead of Lennie because he hates Curley. George lies to the boss about being Lennie's cousin and about the cause for Lennie's condition.
George lies and tells the boss that Lennie is his cousin, and that they left the job in Weed because it was done. George tells the boss that Lennie is not smart, but does not tell him he's mentally challenged and he is strong.
