This discussion may contain spoilers!
I'm going to preemptively point out that I know this thread probably won't be seen, much less answered. Sigh. One has to try.
Am I missing something? I'm at the park with Lambert after opening the box and I can't find a daft thing to do - no inventory, can't talk, can't use anything or go anywhere. What's worse, I can't find a single document on the internet discussing what happens at that point in the game - I'm sure it's on some youtube videos, but that's blocked here in China, so no beans. What gives?