Getting Healing from GREEN people
 

I cannot count how many times I've met Level 40 Pirate Masters in-game, who did not know how to use these green people for healing. I know it took me a long time, despite people trying to explain it to me, sooner.

http://www.youtube.com/watch?v=gl0WRBarlMk

If you've ever needed healing in-game, you probably need to know this trick.