what advice does george give lenny after curly and the swamper leave

George tells Lennie to steer clear of Curley's wife, which will keep him off Curley's radar.

"Listen to me, you crazy bastard," he said fiercely. "Don't you even take a look at that bitch. I don't care what she says and what she does. I seen 'em poison before, but I never seen no piece of jail bait worse than her. You leave her be."