[She gives him a bit of an encouraging look, pointing at Nihongo then pointing at everything she's written.]

Wakatte imasu anata ga wakarimasen.
(I know you can't understand me.)

Dakara watashi omae wo tasukeru ga shitai nihongo saishite yomu to kikikomu wo mitomeru.
(But I want to help you understand that this is Japanese when read and spoken.)

[She speaks slowly, carefully, trying to let him hear how she's speaking. She has absolutely no idea if her intention is getting across at all, but even if not, hopefully he'll manage to pick up the sounds of it in case anyone ELSE speaks it.

And maybe then he can bring them to her.]