User blog comment:YourFavoriteSalmon/Demons Among Us (User RP)/@comment-7173140-20160720030458/@comment-24010741-20160720171132

Unlike most demons, Arya had slight sympathy for the human race. But she was able to hide this well. So she decided to listen along to the plans, keeping an emotionless face.

When she noticed another person walking into the room, she used her erebokinesis to darken the atmosphere. If the person was a mortal, they'd be creeped out and would more or likely leave. If the person was a demon, they'd respond to it.