Sometimes, I have trouble coming up with a way to end a description properly, especially one that's at the very end of a chapter. What are some of the things you can do, especially when the description just describes a set of actions taken by a character? Is there a way of doing this without going inside the head of the character and describing his psychological state or inner thoughts?
He waved her goodbye, and then he sipped his cup of coffee while looking towards the window. When the elevator rang, he looked back at her with a smile to send her off.
I have no idea what you can do after that without describing his psychological state or inner thoughts. The character doesn't do any action and I don't want to describe his psychological state or inner thoughts, because the character is extremely unimportant to the story.
Two lines feels way too short, I am trying to add like 3-4 additional lines.