- What do you make of that?
- Your guess is as good as mine.

2 seconds sound clip from the The Treasure of the Sierra Madre movie soundboard.

You can hear this line at 01:12:40.052 in the Blu-ray version of the movie.

Quote context

[...]

- Chopping. Wood for camp. That's funny.

- If they're up to what I think they are, it ain't funny at all.

- What's that?

- Building barricades that move. It's an old Indian trick. Crawl along and push the barricades before them, you can't see where to shoot.

- Brother, I'd be willing to trade my share of that gold mine right now for 3 or 4 hand grenades.

- You better get to your posts.

- Vamos, muchachos! Vamos!

- Hey, they're beating it.

- What do you make of that?

- Your guess is as good as mine.

- Wait a minute, Dobbs. This may be just a trick to lure us out.

- I don't think so. They ain't good enough actors for this kind of a trick.

- Hey, partners! Up here! Here's a sight if there ever was one!

- Federales. Look at them. I could kiss every one of them.

- They must have gotten it from the villagers there were bandits headed up this way.

[...]