He passes paper over while carefully not coming close to touching or anything.

Good.

She sketches the stupid fairy.

He takes the sketch. 

I'll let you know if anyone sees her.

"Thanks. Can I have more drawing paper?"

I'll have someone bring it to you. 

I noticed you don't want to eat anything. 

"Yes, whoever brought the tray can save the trouble next time."

All right. 

"Within the boundaries of the court can I pretty much go wherever?"

Yes, except don't go into rooms with closed doors uninvited.

"I would have guessed that but probably it made sense to clarify anyway."

It's hard to anticipate what people find obvious and what they don't. 

"I've noticed that!"

You can let me know if you have further questions. Especially once you've done some more patrols.

"I want to know more about magic. But that can in fact wait for more patrols."

Quite a few of them, probably, for that. 

"Oh well."

Take care.

She nods and goes back in her room and draws until someone tells her it's been an hour. Then she patrols again.

They will just keep notifying her about patrols at reasonable intervals (she gets ten hours off for sleep) for a while. All the patrols turn up no people.

Eventually she has a tidy stack of drawings which she doesn't show to anyone and is even reasonably confident nobody is going to go snoop on.

And sometimes she practices fairylights in her room, and that works fine, and she doesn't know why the gate didn't work, but this is comfortable enough (and she's not sure enough she isn't being surveilled) that she doesn't retry it right away.

One day someone stops her in the walkway outside her rooms and, when saying something gets him nowhere, tries a signed language.

"The way you described your language working doesn't make any sense!"

Well, this is a security hole. But going around blind would be so inconvenient, and patching the hole would be lots of information about the nature of what she has to patch. She signs right back, even though it's always a little weird-feeling. "Why do you say that?"

"- well, for one thing, this works. How does this work, what are you connecting my hands to when they move -"