When interacting with extremely friendly NPCs (maybe housewives?), it seems like they could offer some sort of herbal information, the way that some old men will tell you what the weather is like. Something along the lines of "did you know that milkweed can be applied to wounds?" or "the mushrooms over there are called sand mushrooms, and they are very poisonous."
It might even give some of the village women useful information they could share with the PC.