The conversation with Rosencrantz, compared to the conversation with Polonius, was of a more calm manner and contained less insults. It was evident from the way Hamlet was introduced to Polonius that he had a low opinion, as he called Polonius a "fishmonger" as an insult. Hamlet continued to insult Polonius for the entirety of their conversation. Indeed, Hamlet choses to insult Polonius through clever diction in a way that he, Polonius, was unable to figure out. But with Rosencrantz, Hamlet choses to present a more humble demeanor and isn't really more "civil" in as much as Hamlet is more polite to Rosencrantz. Hamlet was almost taunting Polonius, however he managed to treat Rosencrantz and Guildenstern with a degree of respect that borderlines
