They'll talk about if they're getting enough food, if there are a lot of predators around, what interesting things they've seen lately, and things like that. Pokémon can talk about more complicated things than other animals can, so when I'm traveling I can ask them were I can find water or if a plant is something that I can eat or what kinds of attacks they can use or what they evolve into. They have a lot of interesting things to say. Humans would be nicer to them if they understood them.