You should definitely bring "leave behinds" so that if there is some interest the reviewer will have something to remember you by - a small sample of your work, like a postcard, is good. I have had cases where I didn't get great vibes during the time with a specific reviewer but then got contacted later by them. I would not expect a reviewer to read a summary during the actual review time.
It is possible to show 2 bodies of work, but that cuts the time for feedback in half for each portfolio. One strategy is to show samples of both quickly at the beginning and ask the reviewer if they prefer to focus on one or the other. Then you can focus the time spent with that reviewer with the portfolio that they connected with the most.