So, painstakingly, carefully, she changes the color of her dress, green to red.
The silence ward is incredibly complicated. If you do it just as a ritual it can take up to a week to do. But you can abridge things indefinitely if you work at it enough--these steps are all abridged as gestures and these gesture sequences are abridged as words and these word sequences are abridged as another gesture. Most magicians are limited by their ability to create and remember distinct abridgements. If she works very very hard and is good at remembering things, she could eventually cast a silence ward by clenching her jaw.
...and how long is Little Bird willing to hand-feed her leaflet visitor?
Promise shows him her notes on magic and explains Jawbreaker's didactic habits.
"All right. I self-taught sorcery from books, but that meant no one but me was spending time on it."
"Jacenty" proves to be a somewhat better teacher than he had predicted. He gives her advice on memorization techniques and striking a good balance on how precisely to define a shortcut--too precise and it becomes difficult to remember, imprecise enough and it cuts down on the total number available. "I do not suffer fools patiently," he explains one evening, "but you are not a fool. Now, let's see if we can't train a bit more precision into that sequence."
Actually -
"Since I can make gates from this side," Promise says to Little Bird, "I wonder if it would be a good idea for me to just live in this world. I could bring a cutting of my tree and some seeds and grow them, somewhere no mortals have grown anything, ideally where no one is claiming the land either, or I could just make a little farm up in my tree's branches if that's not doable. If I were far away from people there wouldn't be that much risk of anyone introducing themselves."
"I think this is a great idea in theory but there is only so much planet and I wouldn't bet there's an inch of land that no one's grown anything, so you'd want to do the branches thing, definitely. And, uh, our population is kind of growing, so even if you pick somewhere uninhabited it might not stay that way."
"I could live somewhere very otherwise inhospitable," Promise says.
"I was thinking maybe high up a mountain." She has been reading some of Little Bird's books in between practicing ritual magic. "So it wouldn't be so inconvenient to visit. But if humans are as acquisitive as all that maybe I should just gate to the farthest place I've ever heard of and live there and gate here when I want magic lessons."