iPhoto, faces and whole photos

When I click on "Find Faces" in iPhoto, I sometimes get a face that I don't recognize. I would have a better chance of recognizing the face if I could see the context---that is, the whole photo. Is there a quick way of going from the "Unnamed" face to the whole photo. At the moment, I can only think of a fairly convoluted and slow way, like naming the face "X", then searching for all photos with "X" appearing, then double-click to enlarge it.

I would also like there to be a quick way to get back to finding faces after looking at the whole photo.

Thanks