Please know that if Emet tries to lecture Eustace on proper table etiquette, Eustace will immediately judge the hell out of Emet and possibly drink his soup straight from the bowl out of spite. But on the flipside, he'll also be paying attention to what the rest of his Kenoma buddies will be doing/saying, so if Emet's going to be very vocal about his battle strategy opinions and make subtle bids for power, he'll stand out as someone to keep an eye on.

Maybe they can meet up in the city and do a tour or something? :|a Eustace does not care what other people think of him and will be mostly just getting a lay of the land/culture/political atmosphere because he is the type of guy who needs to learn all information available to him.