Teach Me...
 

What can i do with Jewler skill?
Mountaneer skill?
Woodsman skill?

Mountaineer is always in effect, and makes you travel up hills faster, I think.

For woodsman, say /use_skill woodsman, when you find something that monsters drop, like bomy skins. Each time you correctly identify one of those things, you get 250 experiance.

I don't know what jeweler does.

With jeweler you identify rings, and maybe amulets and and other jewelery.