Don't worry, Tidus. Unlike certain other people you have to deal with, Madoka actually understands modern technology - even when it's got an otherworldly spin. It means that his explanation is enough for her, and she demonstrates it by taking a picture right now, looking at the thumbnail that appears.

.. The picture looks right, she thinks.

"Don't worry, I'll take care of this."

While Tidus takes care of his.. something? Madoka is still a little confused as to that part, but too polite to insist on knowing what he's going to do. So she just gestures at him, telling him that it's okay to go while she takes the pictures for Jiang Cheng.

"Come meet me back here right after so we can go take him back together, okay..?"