[Sounds like a lot of work, but something that clearly Crowley had on lock-down. Nothing too difficult, but with the right words, and an understanding on human nature, easy. Gokudera lacks such diplomacy. Then again, he's not trying to do more than get by and impress his boss.]

Water would be good to know. My familiar is very good with it. Are you a demon? [He looks Crowley up and down, but hey, this is a new world. He has a lot he has to adjust to.]

If I had powers? I didn't. Just uhh... know how to make bombs and I can play the piano. There's no use for that, though.

[It was part of the reason he was turned away from several mafia families growing up, anyways.]

I'm also probably immune to many poisons, just because my sister had fed me so much in my youth. [Which means when he was a child, since Gokudera is obviously a teenager.]