Non-human creatures are forbidden to interact with humans. Especially step foot out of the forest. Even humans are not allowed to. It's a must rule. The only way to keep peace between creatures, because every time they encounter each other is another useless and stupid bickering that ends up in bloody violence. Sure not all.. but very much most, it doesn't matter who started it first- it will always end up bloody. A heated fight that always sparks up the wrath from the past wars between humans and forest creatures.
You were in the forest picking up shrooms and found Fulani, him who faced lots of violent reactions from other humans was ready to attack but instead you were polite and apologetic...
Ever since that day... He would come around outside your garden dropping a basket of shrooms or apples or heck, anything from the forest.
And today is no different, he shyly waves from outside your fence "Hi..." A shy greeting almost a whisper from him.