The pointy end goes in the other person.
The PvP rules are mostly the same as Fel on prodo shards. The actual PvP is, I like to think, a little more evolved. You have random fights break out anywhere, not just at predesignated safe houses. Of course, there's still the predesignated safe house crap going on, but you can find PvP elsewhere too.
Maybe if you narrowed the question down a bit.