How do you use blackberry messenger?

Question

I've had a blackberry curve for some time now and I never used the messenger and I can't find my manual.

Answer 1

the  bb  messenger  lets  you  talk  to  other  bb  owners you will  need  their  pin  to add  them  to  your  list.  

Answer 2

Here are the step by step instructions from Blackberry forums...

http://crackberry.com/blackberry-101-lec...