Belmarniss shows up early the next morning for her consultancy meeting, munching a pastry from her breakfast spread. "Hey - I was told to meet with a Luay?"
"No good reason. Worrying you'll get attached to all the important people and leave us all alone, I guess."
"That wouldn't be very conducive to incipient godhood, I hear the pharaoh doesn't share."
"He probably already speaks all the other languages I know besides the sign language, anyway, and I'm not sure he's planning to overpay for two language courses, so he will lose interest in me after, what, a week?"
"We have a sign language to talk in excessively echoey spaces, and also in dark rooms with slaves around so they can't hear. But it's useful in so many situations besides those that I do kind of wonder about societies that manage bilingualism at all, like here where most people speak Osiriani and Taldane, and don't slip any sign in."
"It seems useful! I think it might be hard to pick up from a standing start. Not for - Prince Fe-Anar, though."
"Even a few signs are handy, though. Like, you nod and shake your head, that's like sign and it's useful on its own."
"Yeah. And I think lots of people have more than that, for 'stop that argument you're having' and 'you're embarrassing me' and so on, and maybe that gets them most of the utility? ...I don't really know what normal peoples' lives are like."
"Oh, let me think, most-used signs - 'wrap that up and find me when you're done'. 'I have already gotten what I came in the room for and you don't need to ask'. 'Sorry' without interrupting about it - makes compulsive apologizers less annoying. 'Can I have some of your food'. 'Wait a minute'."
" - huh. Those seem like awfully good ones and I don't think most people have any good substitute at all. Maybe you can get it to catch on."
"Man, imagine if everyone was. All languages would collapse into a single monstrous creole as everyone learned everything. People would differ only in accent, and then they'd all learn to do all the accents and it'd devolve into class signaling or something, and you'd break your back trying to carry a dictionary. I am capable of repeating a phrase more than twice, Hagan."
She goes through the phrases she outlined, and throws in a few more to demonstrate the component handshapes more simply - "why" and "maybe" and "please" and "hurry".
She will go over them as many times as necessary and steal his food to demonstrate in the one case.
He's not a wizard but he's not slow at it. He objects very emphatically to the food stealing with the "why, why, why" handsignal.
Giggle.
And the next day she goes and teaches Hagan's Secret Dad more words in spoken drow.