Yea the regen comment might have been a troll. Regen will pull all aggro to you when the tank pulls if it is still ticking down. If you land stoneskin right when the tank pulls the same will happen, then comes the O'sheet moments from tank and yourself. Lower level it's not that bad but higher up it can be problematic.

Stoneskin when you first enter the duty. For pulls at your level consider Clerics > Aero > Stone > repeat till tank needs a heal > Clerics off > Cure, rinse and repeat. The earlier you get used to how stance dancing works the better you will be in the long run and the more you will contribute to your runs.

You don't want to be that WHM that just stands there with their stick in their hands....heh. Do something. If no heals are needed, DPS.

What Odd said above is spot on.