1)When any
massage come in
your mobile then
don't open it.
2) go into inbox.
You will see that
massage as
unread i.e. U will
see envelop
symbol. 3) then go to option and select forward, you will see all massage. Don't forward it. Then select exit and you will see the envelop symbol i.e. Unreaded massage as it is. By this you can read massages of friends mobile without knowing him.
