Welcome. :) Read tips posts and threads as wp8 is full of stuff you simply wont find out any other way.
Eg, take a screenshot by hitting the windows key and the power button at the same time.
Smartglass is the place to go for your halo addiction
You can "text" people on Facebook from the normal text hub, it will integrate with text messages and can seamlessly jump from Facebook chat, to texts, to msn etc. Just hit the "switch" button bottom right of any text message thread.
