In the scene where Pocahontas is standing in her canoe singing the end of "Just Around the River Bend", she reaches her LEFT hand out to Kokoum in the water reflection, but when the camera turns back to her, it's her RIGHT hand that is raised.
I just watched this scene to check it out, and the reflection is just a picture she imagines. It's not her real reflection, because if you notice, she is SITTING in the canoe, and her reflection is standing. It's just a make believe image, and it has nothing to do with her real position in the canoe.
I just watched this scene. Yes, Pocahontas is just imagining her reflection, but her reflection is following her actions - singing, same movements, so the hands should be the same as well, Kaede. But besides that, she is moving her left arm until the very end of the song. Then it cuts to the reflection, which is also moving the left arm (and has been) - and when it cuts back, her right arm is up. This is definitely a proper slip-up. Nice catch, Babiegurl.