Margo Channing: She thinks only of me, doesn't she?
Birdie: Well, let's say she thinks only about you, anyway.
Margo Channing: How do you mean that?
Birdie: I'll tell you how: like... like she's studying you, like you was a play or a book or a set of blueprints - how you walk, talk, eat, think, sleep...
Margo Channing: I'm sure that's very flattering, Birdie. I'm sure there's nothing wrong with it.