Google Nexus 4 Manual Book page 80

you don't need to do anything else. If you like,
you can fine-tune some settings, but Google
Now doesn't need any elaborate setup.
The information you need is always at your
fingertips.
To know when to display what information,
Google Now uses contextual data from your
tablet and from other Google products, plus
data from third-party products that you allow
Google Now to access.
For example, Google Now uses the time of
day, your current location, and your loca-
tion history to show you what the traffic on
your commute is like when you wake up in
the morning. It also uses information from
Google services such as your Web History for
sports or flight updates, or from your synced
calendar entries for appointment reminders.
About Google Now cards
A Google Now card is a short snippet of use-
ful information that slides into view right
GOOGLE NOW & SEARCH 75