I tamed 37 of these with mejoberries. No crouching or crawling or even ghillie. Just simply feed ONE dodo kibble or be very careful and approach from behind. They are an adorable tame, and can equip hats!
If you are going to tame these they eat berries (obviously cuz it’s a monkey)
but you need to crouch and every time you feed it you need to quickly turn around and walk away for a bit or the monkey will get scared and run away. Hope this helps