[It's not something Tony would admit out loud, but having Korra around is a chance to help out and do a little coaching. He feels good about the opportunity. Tony likes getting to show her some flying tricks, even though it's not quite the same as real teaching. It's kind of like home. Or maybe it's not, and that's why he likes it. Second chances and all of that.]

So the next time I see you, I can expect a challenge. That's what you're saying.

[Okay, so Tony isn't a great role model. But Korra's having fun, he's having fun, and maybe they're both learning something from the flying lesson. That means something to him. He has no reason to doubt that Korra can handle her own training since bending seems like a natural power in her world. It's not like he's watching a complete amateur grasp at straws.]

If you're really good, you can probably learn a few useful tricks too.

[Nope. Totally not a good influence. But she'll figure it out.]