Jyn has never seen one of these downright adorable creatures in her entire life and she is charmed by it despite herself. They are offensively cute. Her life is a Greek tragedy so that's not much of a surprise she hasn't been privy to these creatures yet.

Her hand lifts automatically to wave back.

"I've never seen one of those before. We had droids that people called mouses, but they look nothing like these." They're equally adorable for droids, though, squeaking frantically when they are confused. Jyn doesn't know why they share a name, but she also hasn't heard the rainbow mice squeak yet.