Accept the water... forcefully. Try to feel Sarah out.

“Thanks,” you say firmly as you possibly can. Sarah seems to hesitate a moment as you take the water, drinking it with a gusto. Sarah sips at hers then looks at you. She seems to be testing you now, as much as you are testing her.

“Why don't we sit down,” you say. You say it with the air of a command, and think you see Sarah's eyes sparkle as she sits down on the bed. You sit down next to her, doing your best to remain calm under the circumstances. You smile and try to think quickly coming up with only “Do you have any siblings?” Sarah nods, takes a sip of water and licks her lips.

“One brother, John,” she says. Something you've done has caught her attention; now you just need to keep it. Thinking fast, you look at the door. As slowly and deliberately as you can, you move away from questions and tell her to shut her bedroom door. Sara, with a visible swallow, stands up and shuts the door halfway. Smiling, you tell her to push it almost closed. She does, her hands shaking as she turns back to you.

“Sit,” you say, firmly, motioning to the bed. She looks at you and back to the door, but sits quickly before you can say anything else. “You're shaking,” you observe. Sarah nods. You smile gently at her, then put a hand on her shoulder.

“Anything I can do?” you ask. Sarah seems to regain some control of herself and shrugs. You hope you haven't pushed her to far, but you're fairly certain now that you were right in chasing that particular aspect.