Quote from Monica in The One with Ross and Monica's Cousin
Monica: Cassie needs to stay at your place. Ross: Why? Monica: Because "Pervie Perverson" here can't stop staring at her. Ross: What? Chandler, she's our cousin. Chandler: I was not staring at her. I was just listening intently. It's called being a good conversationalist. Watch. Say something. Monica: You were staring about eight inches south of there.