By nodding their head
You can say "lafi" to say goodnight in Mandinka.
In Berber, you can say "tanemirt" to say goodnight.
goodnight
"Goodnight".
goodnight!
The most famous book with dinosaurs may be "Jurassic Park," which inspired the popular 1993 film of the same name. Other famous books include Jane Yolen's "How Do Dinosaurs Say Goodnight?" and "National Geographic Little Kids First Big Book of Dinosaurs."
In Fulani, you can say "Jaama wolof" to say goodnight.
In Pangasinan, you can say "napagtolak" to mean goodnight.
This question is subjective, of course. But her most popular books are probably: Owl Moon How Do Dinosaurs Say Goodnight and Devil's Arithmetic
shab bekheyr
In Polish, you say "dobranoc" to wish someone goodnight.
In British English, you can say "goodnight" or "night" as a shorter version.