EDIT; for maximum sharing capability, once the model is in full-screen do the following;
1) Press Prnt Scrn on your keyboard
2) Open MSpaint
3) press Ctrl+V, crop if needed
5) upload pic to imgur, no account needed
6) click the web version of the image
7) take URL of raw image and ctrl+v that sucker into a reply
8) Enjoy sharing error-free
See Ranor in his HD glory!
It's quite temperamental though, dead links popped up a lot for me until I gave it a third try.
2) Tools tab
4) Look up Battle.net profile
5) Enter deets
6) Fingers crossed for no error
7) Double click your 3D character model to view fullscreen
8) Rotate with L-click
9) Take screenshots
10) Share with friends
And obviously this is only good for models in the WoD Alpha client, things can and will change folks!
I checked everyone else's out though.
Have pretty much no characters with currently released updated models :S
I feel your pain! :[