[That's a good question. He has to think. These weren't just any fortune cookies, after all.

He paces back and forth in front of the bag, his eyes occasionally flicking over to it as if he could will the cookie inside to tell him all of its secrets.]

I have no idea. If it's an extra that someone at the restaurant threw in, it could be for anyone, but Soos' fortune specifically said that there would be an extra one so that could mean that it actually is meant for us.

Basically the big question here is this: is the cookie really for someone in this house? We both took a cookie that wasn't ours, so it may belong to Soos or Grunkle Stan.

Or... [He stops pacing, peering apprehensively into the bag at the lone cookie inside of it.] Or it could be for whoever opens it.