The Hamlet Project

Reynaldo seems to be way ahead of Polonius on this. He’s already planned on asking around about Laertes, or at least that’s what he says. He either is anticipating Polonius’ needs/instructions or knows how to make it seem as though he anticipated this instruction.
Maybe he knows Polonius well and would do what he would ask before he asks or maybe he’s a professional spy and Polonius is asking him to do what is part of his job, part of his spying wheelhouse and Polonius is micromanaging Secret Agent Reynaldo here. Whichever it is, Polonius seems to be impressed with this response.