At his question, Nixie nodded her head, continuing to study the piece. She did not fully understand it, but that was true for a lot of things humans did. She'd never pretend like she understood what went through their heads anymore than she understood why sharks were the way they were. Though sharks were a little higher on the food chain. She'd never met a shark who was afraid of a human, but saw the opposite all the time. Made sense. Sharks were natural predators.
A few more questions floated through her mind, but since there were only humans around, she had no way to ask them. Maybe that was why Charlene had insisted on learning how to write. Well, Nixie wouldn't sink to that level to learn how to communicate with humans. Instead she inclined her head towards Ross briefly, the closest to a thank you that any human was likely to get out of her without showing themselves to be better than the rest, and turned to leave the museum. Maybe she'd run across Charlene on the way back to the river. Provided she could find her way back.