Kal shrugs. He doesn’t like showing off for the sake of showing off but she isn’t really asking for much, and he came here as Superman so if there’s someone out there watching his reactions (which was his first thought upon waking up, but it’s looking less and less likely) they won’t get anything they don’t already know about. He can just keep some tricks up his sleeve.

“Be my guest then. But I could show off in other ways, if you’d like- like flying, or my speed.” He notices how she keeps the conversation to him, not giving anything away about herself. But that's fine, he's a patient man.