Uh-huh.
3 seconds sound clip from the Rain Man (1988) movie soundboard.
You can hear this line at 01:36:24 in the Blu-ray version of the movie.
Quote context
[...]
- He was born August 12, 1962. It was a Sunday.
- What exactly do you guys do here?
- Uh-huh.
- I know that you're counting cards. What else do you do?
- Are you taking any prescription medication? (2)
[...]