Of course he sees Akira carefully trying to conceal his expression as soon as Akechi says that, and it... stings... but he tries not to focus on that. What's clear is by the way that he reacted, something is troubling him.

...just hungry and tired... Akira expects him to believe that? Even 9S is skeptical.

His hand falls away, and he looks to the android expressing his concern, quiet, conflict in his eyes. Why does it suddenly— matter to him so much that Akira be okay? Haha, maybe it's because... the last time he was doing unwell... His stomach twists, and his hand twitches at his side.

He draws in a breath, then slowly brings up his hands to sign:

If you really don't want to, you don't have to talk to us, but He hesitates for a moment. A couple moments.

What is he doing? What should he be doing? He suddenly seems at a complete loss for how to handle this situation. He'd treated Akira almost exclusively with ire since he came, and now he's suddenly— afraid of pushing him?

I should go get you some fresh fruit.

Is he actually nervous? Apparently so, because before anyone has a chance to protest, he hurries out the door.