Shhhh.
Its a healer's secret trade.
Follow
Spam cure or whatever / fairy heal
After each mob press follow
Stack vit if u don't mind getting hit by some aoes
I browse the forums / facebook etc when i have to heal low level dungeons.
My policy is
" as long as no one dies and the group is making progress. "
Dpsing is like the cherry on top. Great! but isn't mandatory.