When you visit the executive assistant to request important changes to a spreadsheet, he is hard at work, e-mailing clients. The moment you arrive, however, he stops typing, turns to face you, and looks you in the eye. What message is the executive assistant expressing nonverbally?

he values your time

Explanation:

In this specific scenario, the executive assistant is expressing nonverbally that he values your time. This is expressed by him stopping what he was doing in order to pay attention to what you have to say to him when you enter the room. Since the work that he is doing (e-mailing clients) is incredibly important, the simple act of him stopping shows that your time is more important to him.

answer; engaging in effective public relations;