Nothing.
3 seconds sound clip from the Dr. Strangelove movie soundboard.
You can hear this line at 00:14:17 in the Blu-ray version of the movie.
Quote context
[...]
- I don't like the look of this.
- All right, tell you what you better do, old buddy.
- Nothing.
- I just thought I might mosey over to the War Room for a few minutes to see what's doing over there.
[...]