Thank you for your question. I'm not sure what you mean by an interaction piece, but in my experience it is useful to mirror the community engagement process when working with students. This is particularly useful at points where they need to synthesize information at the end of a section of training. In this way, students learn how to actively use community engagement principles in solving a community-based problem. It will also allow students to think about community-engagement not as something exterior to themselves, but something that has immediate worth for them, in their specific contexts, as opposed to somehow "separate" from community-based work.
I hope this is helpful!