When we come back from commercials, Alex and Mookie -- seriously, this is so awesome -- are running to make it back to camp in time to strong-arm Yau Man into nullifying their advantage over him. Hurry, hurry! Mookie explains in an interview that they were giving Yau Man "an ultimatum." See, an ultimatum is usually something you give in order to force someone to give you something you want. Here, why do they want him to tell everyone? What is the possible advantage of him telling everyone versus them telling everyone? Why are they trying to pressure him to do what's worse for them? IT MAKES NO SENSE. This does not keep them from knuckle-chucking each other as they run toward camp.
Okay, but here's the really good part. The really, really good part. Remember the shitty plan that Cassandra and Stacy overheard, forcing Mookie and Alex to abandon it in favor of an even more shitty plan? It turns out that Cassandra and Stacy couldn't really hear anyway. They were eavesdropping, and they caught a few words, but they're like, "Guh." They don't really know anything. It's pretty sweet.
All right. So now, Mookie and Alex are back at camp, breathless and hurried, and they pull Yau Man over and tell him the deal: they know he has the idol. "Now, do you want to tell the group yourself, or do you want us to do it?" Mookie says. And then he mock-casually takes a big bite of fruit, just like a high school bully would in the cafeteria. Yau Man asks why they think he has the idol. They tell him they saw it in his bag. He kind of smiles, and he's not sure what to do, and then he sort of shrugs and nods. "I thought you guys were getting firewood," he says with a smile. "So what do you want to do, Yau?" Alex asks. He's breaking the smugness-ometer right now. It's like the fact that Yau Man is uncomfortable here makes Alex think that this must be a great move. Which...isn't the case at all. It's true that it might be bad for Yau Man down the road in some nonspecific way involving "Dreamz" going bazoo over lack of trust or something, but none of that really affects Alex or Mookie right now.