I wouldn't worry too much about PCM material or physical assessment stuff. Everything will change in the real world during year 3. Something to look forward to ( I know I am).
If you really want to spend time shadowing or working on physical assessment skills, try to get involved in the student clinic. I don't know much about it, but I know its a thing that occasionally happens. Thats probably your best chance of shadowing someone that works at KCUMB. Every once and while someone will post on Facebook an opportunity to work with docs/fewllows doing physicals on the weekends if that is something you are in to. There is also Score 1... which is a thrill, let me tell ya.