"Tremendous, you have a real flair for the dramatic. I suppose that's apt." He takes the glass, having at least the grace to put down the one he was already holding (though to be fair that wasn't wine), and has a sip.

It does still make him sad, but that's fine. He's trying to draw a stronger association with Claudius about wine, and he glances over to find Claudius amongst the assembled, just to strengthen that connection. Perfect.