[@MiddleEarthRoze]An answer for our great members: not telepathically or verbally. However, they are human minds in animal bodies. So they can use movements and sounds, like shaking their head or pointing in a direction. Maybe even a form of miming things out, as far as their animal form allows it. The racoon for instance would be able to use finger movements for counting, the 'peace' sign or flipping the finger. While other creatures might lack distinct fingers, perhaps they have other body parts that would aid them, like a tail. Furhtermore, signals can be decided ahead of time, so that a minor vocabulary could be translated into animal sounds. For more complex sentences you might want to practice morse-code. Well.. another challenge for your creativity;) enjoy.