The space is definitely welcome, and Nill can certainly breathe easier after Bulla steps back a bit. This is just a lot of information to try and process in a very short amount of time, which is something Nill is not at all used to. But at the mention of snacks, she does give a tentative nod. She could eat something. And if Bulla arrived on the train just now too, it means they're more or less in the same boat.

She gestures towards Bulla's hand, and then motions that she wants to take it in hers.