You need to open your eyes and keep your mouth shut.
4 seconds sound clip from the Scarface (1983) movie soundboard.
You can hear this line at 01:02:25 in the Blu-ray version of the movie.
Quote context
[...]
- I'm not worried about it. You should worry about it.
- If he wants to make a deal, it's up to him, not you.
- We're doing this one deal. That's it.
- You need to open your eyes and keep your mouth shut.
- That's it. Let it go at that.
- Wait 'till you get back. Your head's in the wrong place.
- You have to watch out for yourself.
[...]