How do I free Nada?

Hint 1 of 7:

The first thing you need to do is listen to her instructions.

Hint 2 of 7:

Never look at her or say anything that would imply you might be looking at
her.  So something like "You look a little tired" is absolutely, positively,
definitely a no-no.  Be very careful in what you say.

Hint 3 of 7:

Have you been listening to what's been going on in the room?

Hint 4 of 7:

Something is talking from around Nada's arms.

Hint 5 of 7:

Only one thing is around her arms.

Hint 6 of 7:

The manacles.

Hint 7 of 7:

Why not try talking back?