Lily was sharing to her parents her feelings that day. "She felt very angry this afternoon because the visiting group did not obey the rules, she was so mad that she made her hands into a fist." This scene is shared in the play and the book, and was not a good choice by the director of the play because Lily does not shows as much aggression towards the situation as she did in the book.
Jonas is terrified that he saw the plane and is waiting for orders. When he receives the orders, he obeys them instantly. In the book, they "stop what they were doing and wait, confused, for an explanation of the frightening event." and "Instantly, obediently, Jonas had dropped his bike". However, in the play, they were all calm, and there were no orders and they continued with their everyday lives.