It was not a scream.

[More like an exasperated shout, but. Huff. He'd deny it if it was.

... That's good, though. Even if he doesn't like that tone Akira's got, this height of wave is fine. He'll kick them a bit, quietly taking in the night too, and shakes his head.]

I've never needed to know how. It's a useful life skill to have, but how often do you think someone's going to use it?