Where do people look when they visit your Google+ profile?
We did an eye-tracking analysis (linked below) of various social networks -- Facebook, Google+, LinkedIn and others -- to see the differences.
Google+ is the 3rd and 4th slide in the slideshow. Those images show the following:
-When people first visit your Google+ profile, they look first at the top item in the content column (your latest update). They also spend the most time looking here.
They then look into the left column - your Circles and profile pic. They spend less time looking here.
-Finally, they look at the top of the page - the section with links back to their own home screen, photos, profile etc.