Bluetooth ?

I have the Sidekick LX and a macbook, I can pair them together, but that's it.

What else can I do with BLuetooth?

&& How come my friend who has a LG slide can send pictures using bluetooth, and my sidekick won't do anything but pair?

What is pairing by the way?

Is there any way I can get my sidekick to bluetooth pictures too?

It's okay if you don't know all the answers, but as much help as possible is appreciated.