Could be bluffing.

I could be bluffing.

He's gotta be bluffing.

- He could be bluffing.

You better not be bluffing.

You better not be bluffing.

Well, who says we'd be bluffing?

Well, who says we'd be bluffing?

You could be bluffing. I'd have to see it first.

And why is that necessary? Because he might be bluffing.