[He nods a little approvingly that she was circumvent and casual while talking to 'Sans,' and goes "ooh, yeah" at the mention of Rita's art space. That should work perfectly.

Well...

[At that last question he walks a little more stiffly, forgetting that while it might look cool and tall and impressive, the tension in his body would communicate to someone riding on his head. It's with a lighter and confident-sounding voice that he tries to reassure her.]

Only maybe! I have loads of kidnapping experience, [he once captured a single human only a few years older than Reira.] So there's no question of getting him to come along, no matter what. But... It'll be a little suspicious, if I'm the last seen with him and it takes a while. So I might have to 'lay low' until we can convince anyone worried that he's fine.

[Nobody suspected spiders treating the beetle as a camera to watch suspicious things. That's just how it goes sometimes.]