Duo eyes them both, furtive. Seems like the Emperor here approves of Cordelia more than not. But also doesn't really want a scene. For her sake or his?

...maybe for Security's sake.

"I'll do my best to keep the Dowager Countess out of trouble," Duo says, giving that statement all the weight it deserves. (i.e. none) "But I'm afraid I can only follow her lead, being an ignorant galactic."