The best way to describe it is <span>People who may know some but not all details of your topic.
This type of audience is usually well-read and understand the basic enough to follow whatever details you want to include in your presentation or any form of public arts. Unlike the normal audience, you could use a more difficult and even put a couple of inside jokes within these crowds.</span>
"Hidden" should be capitalized because it's the beginning of a new line.