up date
Spoilers here for those who are trying it-
I have been playing two games with this. A female on the Shaman quest, and a male on the warrior quest.
The warrior quest seems to be more useful. You have to get three golden gecko pelts in three days. These can be stolen from Klamath pretty easy, or if you got the balls to try it, by fighting a could of goldens. You get the gecko skinning pelt before you go, then 300 or 400 experience and some fighting bonuses.
Couple issues- I don't think you can get it if you are female, but it might be my female stats aren't high enough. Also watch the time. Combat bonuses for unarmed and melee weapons.
The Shaman quest is a bit more interesting. First Hannukan (*is that the name) sends you to kill spore plants. Don't do the martial arts on the plants! Then you need to get more than 30 kharma without killing anything and be back for the day of initiation. Some medical bonuses when you listen to his lecture. The way to do this is to be quick. Fix the well, and find smoke (don't kill the little geckos- Hanukan said you need to do some good things without killing anything) Get your butt to Klamath and fill Whiskey Bob's still than hustle back. Got to be quick because if you wait to long you lose the bonus and everyone at Arroyo hates you.
Hanukan lets you smoke some reefer and you pass out. The next day you wake up in the village after doing a crazy tribal dance. 300 bonus exps. If you kept the pack of smokes you can give that to Hanukan for more joints. Also you get your own grampy bone and a nice peace pipe, although what to do with them is still unknown.
I thought this was a nice way to start Fo2 with more of the tribal story.