In spite of knowing better, Oswald's chest tightens with a kind of anxious excitement, though his more rational mind forces him to remember the word copy. But he wants to see all the same, he wants to hope, wants to find the truth so badly.

In fact, he's so distracted he almost doesn't realise the car has stopped and Ed is getting out.

In many situations, Oswald would scoff at being offered a hand, ignoring it at best and actively smacking it away at worst. He stares at Ed's hand for a few seconds, because yes of course he would do it for anyone, but to Oswald it says something different. Finally, he reaches back and takes it, hauling himself out of the back of the cab.