You might have to just play this by ear. It’s really going to depend on the circumstances and how the opportunities present themselves. More or less it’s going to be a matter of presenting an alternative and interesting viewpoint to what is being introduced. It will especially help when you have an answer and the instructor doesn’t. I met a kid at a Mises Circle event who told me he was introduced to Austrian economics when he was in high school and his father gave him a copy of The Mystery of Banking. It wasn’t long before classmates were looking to him during class discussions, and after hearing the teacher’s assessment asking “what do you think, Mark?”
But I wrote a bit about how to effectively argue here and here, and the concepts are the same, as the goal is the same…so you might find something useful there.