Go ahead. Don't be so stuck up, autograph it to them.

5 seconds sound clip from the Breakfast at Tiffany's movie soundboard.

You can hear this line at 01:15:09 in the Blu-ray version of the movie.

Quote context

[...]

- She doesn't believe me. Show her your driver's licence or Diner's Club card or something.

- Honest, he really is the author. Cross my heart and kiss my elbow.

- Would you kindly lower your voice, miss?

- Why don't you autograph it to them? Don't you think it'd be nice? Sort of make it more personal?

- Really, miss...

- Go ahead. Don't be so stuck up, autograph it to them.

- All right, what shall I say?

- Something sentimental, I think.

- What are you doing? Stop that! You're defacing public property.

- Well, all right, if that's the way you feel.

[...]