Well he's not going to overstay his unwelcome, annoying Cesare is fun enough for a few minutes but it's not like Eames has any desire to be around the man any longer than that. Or at all, really.

"Of course-- mind yourself out there," he smiles and claps Cesare on the shoulder, "be a shame if someone got vomit on that lovely white vest of yours."

And he turns and leaves to find someone he actually enjoys talking to. Bye Cesare.