[Looks down briefly, his hand brushing over the dagger at his side, thoughtful. Hearing Subaru laugh and smile seemed nice - unexpected, strange (but was he meant to expect from someone he'd never met before today?) - maybe a little reassuring. His shoulders relax just a little.]
[...]
I understand that your identity would certainly be something to safeguard. [It'd explain why Kamui didn't go into detail about who he was looking for, anyway, just in case. Such blatant trust from Subaru is a little surprising, but not unpleasantly so]
[He smiles, again, not looking exactly nervous - but perhaps tentative]