LG LGE960W - Manual (Page 17)

GET STARTED 8
At the bottom of every Nexus 4 screen, no
matter what you’re doing, you’ll always find
these three navigation buttons:
Back
Opens the previous screen you
were working in, even if it was in
a different app. Once you back
up to the Home screen, you
can’t go back any further in your
history.
Home
Opens Home. If you’re view-
ing a left or right Home screen,
opens the central Home screen.
To open Google Now, swipe up.
Google Now gives just what you
need to know, right when you
need it.