"Yeah. Everyone has one, but not everyone can sense them. I learned from a young age how to do it. It's basically an early warning system that tells you how strong a potential opponent's going to be. But it doesn't always work, because you can always mask your power level or keep your ki low, which is what I'm doing right now. Otherwise, I'd be a walking beacon of power to anyone looking for that sort of thing."

His father likely wouldn't approve of him explaining this to someone, but if he's trapped in this side dimension, he might as well start laying down some friendship foundations. Rebekah's been nothing but nice to him, and she didn't freak out when he told her she was Saiyan.

That's something to someone who hasn't had a lot of anything.