LG VS660 - Manual (Page 168)

To reread a message
When you open a conversation, messages that you've already
read are minimized into a tab that indicates the number of hidden
messages.
1. Press the Home Key , then touch the Applications
Launcher Key > Gmail . Then touch the conversation you
want to view and the tab indicating minimized messages.
2. Touch the contact name to open that message.
When reading a message or when its tab is selected, you can
press the
Menu Key , then touch Mark unread to return a
read message to the unread state. For example, to remind
yourself to read it again later.
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Communication
Touch the tab that indicates
the number of read
messages to view their
summary tabs.
Touch the contact name
of a message to open it,
so you can read it again.