LG VS840 - Manual (Page 120)

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Communication
 Tap and hold a key to enter the alternate letter or symbol located at
the top right corner of the key.
 Move your finger over the apostrophe to enter contractions.
 Double-tap the word you want to change or correct a misspelled
word.
 Tap the Delete Key to erase one character. Tap and hold the Delete
Key to erase an entire word.
Talk
To open Google Talk and sign in
 From the Home Screen, tap the Apps Key > Talk .
When you first open Google Talk, the Google Talk accounts screen will
be displayed. Touch your Google Account to sign in to it and display
your Friends list.
To return to your Friends list
You can return to your Friends list while chatting with a friend so that you
can invite another friend to chat, add a friend, etc.
 While chatting, tap at the top left corner of the screen.
To sign out of Google Talk
You can sign out of Google Talk. For example, if you want to limit Google Talk
conversations to your computer. Also, signing out can extend your battery
life.
 From your Friends list, tap the Menu Key > Sign out.
You will no longer receive chat notifications or see others’ Google Talk
status in other applications, such as Gmail™.