okay... here is the run-down of beartanking mechanics:
Okay... you first basic agrogaining skill is
Growl : this increases your threat for the current target, or said in another way: they hit you. so this is a singletarget threat increase. So you use this to get initial agro, and keep agro when its off its 8 sec cd. So this is used on the maintarget. And as you often need to pull, your spell for that is
Faerie Fire (Feral).
The other instant threat increase skill you have is
Challenging Roar , this is an AOE hit me for 6 secs skill. So this is usually used for ohh shit adds situations, or the healer is dying.
This is for making ppl hit you, and if you take dmg you generate rage, you also generate rage by doing dmg. Another way of getting rage is by using
Enrage, will allow you to get some rage at the cost of some armor.
Then as you are balance specc your main attackspell/ability will be:
Maul, this you keep up all the time and as it is on par with the swing timer you can use this while using other instant abilities. If you have more than one target you will be using
Swipe this attacks multiple target as many as there is in range. So that is for multitarget tanking. And then last but not least
Demoralizing Roar, this decreases enemy mobs' attackpower and by that increases your threat with them.
So doing more dmg increases your threat with the target(s), therefore at low lvl it is mostly about doing dmg, and keep growling at the main target.
That is about it, it was written a bit fast so if you have any questions just ask, either here or when I come online