[Tony is somewhere between admiration and disgust at the way Bucky just methodically works on his plate. He can appreciate that steady force of will that reminds him a lot of Steve when he's focused on something, but the mechanical motions implying that Bucky isn't enjoying the food any more than Tony is bothers him. Why force yourself to suffer through that sort of misery? He's already angry about the lack of water. Submitting to the awful food is just giving these people extra satisfaction.]

We're not in the army now. You don't have to eat it just because they put it in front of you.

[There's a hint of concern in his voice too. They're both here now and Tony feels almost obligated to look out for Bucky. Maybe it's from guilt or it's a response to the sympathy he's being offered, but he does want to help.]

You think they have any juice?