I watch all the videos while they are being posted from beta (Icy Veins!). Then from there I usually do it on a dps first (just to get the hang of stuff), listen to people when they explain, etc. Finally, I log onto my Blood DK and tank the fights (asking the other tank when I need to taunt and/or looking online for what I need to taunt on). That's how I do it ~: ).
TL;DR - Kind of.