[One noteworthy thing about the expressions, however obvious they might be, is there doesn't appear to be anything like a tell or a lacking sincerity that would otherwise indicate falsehood. It is, at the very least, not completely manufactured reactions - they appear genuine in the sense of lining up with all the points that would usually indicate an expression as sincere, such as a smile reaching the eyes.

He pouts in a rather exaggerated manner at that remark, as if it's not very fun.] That's a pretty crass way to put it, isn't it...? Do you like chasing things around that much? I know some people are interested in that...