Communication 113
In the Friends list, press the Menu Key 
and touch All friends.
To switch back to just the friends with whom you chat most frequently, touch Most popular in the menu.
To add a friend to the ‘Most popular’ group
You can set a friend to always appear in your Most popular Friends list.
1.From the Friends list, touch and hold a friend’s name.
If you don’t see the friend’s name, press the Menu Key 
and touch All friends.
2.Touch Always show friend in the menu that opens.
To remove a friend from this list, touch and hold the friend’s name from the Friends list. In the menu that opens, touch Hide friend.
To block a friend
You can block a friend from sending you messages. When blocked, your friend will be removed from your Friends list.
1.From the Friends list, touch and hold the friend’s name.
If you don’t see the friend, press the Menu Key 
and touch All friends.
2.Touch Block friend in the menu that opens.
You can view a list of your blocked friends by opening your Friends list
and pressing the Menu Key 
and touching More > Blocked. You can unblock a friend by touching the friend’s name in the blocked list then touching the OK button in the dialog box that opens.
You can configure Google Talk to send you a notification with the contents of each message that you receive in a chat, and also to sound a ringtone or vibrate the phone.
You can also configure Google Talk to sign you in automatically when you turn on your phone, and you can set whether the mobile indicator is