Quote from Blanche in A Little Romance
Blanche: You're angry. Rose: I am not. Blanche: Yes, I can tell. When you're really angry, you purse your little lips so tight, they almost disappear. See? Dorothy: [entering] Have her lips come out yet? Blanche: Nope, she's still mad at me. Rose: I'm not mad. But if I were, I'd have every reason to be. Dorothy: Rose, come on now. You're about to swallow your chin.