Ctrl seems to be the same as click
Alt and right-click seems to be "action" such as "walk out of the screen" or "talk to whoever you click on"
F1 to F10 all to the same thing, show a screen where you can load, save, quit and change a few settings.
How do I give the documents/pass to the guard? None of the above does anything to that extent.
Okay, yeah, I'm stuck on the first interactive screen, yay me.