Np then. I guess you must be new to the game? In that case, should you want to raid at some point (not just LFR), there's Fatboss guides and Tankspot guides on Youtube. Icyveins normally show beta footage before the raid is even released but will eventually update with live guides.
Uhm other than that, you can always ask here on MMO.
As DG said, dungeon journals are your friend. Just reading the skills may give you insight on how an encounter may go.
When in doubt, ask your fellow group members A lot of them will rage when your group wipes because you make a mistake, but a part of them will be very helpful if you ask them before hand and let them know that it is your first time