Sharp AQUOS Crystal - Manual (Page 281)

Useful Features 272
Hangouts
Hangouts is Google’s instant messaging service. Use to communicate with other Hangout users,
and also use video calling. Log in to a Google account beforehand (see
Google Account ).
Using Hangouts
1. From home, touch > Hangouts .
The Hangouts app will open.
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When prompted, follow the onscreen instructions to continue.
2. Touch New Hangout to start a new Hangout.