“Hello, Miss Evans. The expression on your face is one of surprise.”
It’s evening at the Evans’ house, and it’s time for more acting. We hear running feet, and then Maggie comes through the front door, panting. She locks the door behind her, and then looks around the room. She takes a few careful steps forward, breathing heavily, and turns on a lamp. Then she looks back over her shoulder at the locked door.
Now, I’ve seen people acting before, and in my opinion, what Maggie is trying to express is that she’s afraid of something outside.