How do I use Blackberry messenger?

How do u use blackberry messenger?

• and how do u add a contact.... i tried the add contact button but nothing is happienin or maybe im doing somthing wrong... please help me

• Answer:

  You need to have another person's blackberry PIN number and have it saved to their contact info. For example, if you had e151353 as a pin (entirely made up pin), you go to your address book, select the name, select edit, scroll down to PIN, input that information, save, go back to the blackberry messenger, select add contact, go to that person's name in your address book, and select them. The invitation will be sent and it will say "pending" until that person accepts your invitation.