Oh! Well, that's one way to answer... let me write that down!

[And he begins to write while looking at the phone that Ren is still holding.]

Telekinesis... laser sword... you're really powerful, aren't you? Not to mention your ability to tell if someone is on the app or not! I'm glad that you've decided to use your powers for good, hahaha!

[He's being overly enthusiastic about this, but he does seem genuine as well. He really does appreciate the fact that Ren has volunteered to help.]