Hello and welcome 
			
 
		 Darth Khan
 !
1. Its all about respect and communication. If you give it, you'll get it. We're all just here to write fanfiction and have fun!
2. The year is 900 ABY. There's a big struggle right now between empires (same old stuff haha). Two big factions right now are the Dark Empire and the Empire of the Lost, both remnants of The Empire. The Dark Empire, taken over by a shadowy cabal of Sith Lords, is attacking the long standing Galactic Alliance (basically the New Republic), while the Empire of the Lost is being attacked by The Sith Order, which is trying to reclaim its own lost empire. Lot of empires, lot of war. You've come to Chaos at a great time!
3. Lots of different answers to this, but to me its all about character motivation. What I do is just think about who the character is, what they want, what they would do to get it, and how things might change with each character they interact with. For instance this character, Kazian, wants to go up in the ranks of the ISB, so I write him as ambitious and willing to do whatever it takes. 
4. I'd say refer back to 1. When you're writing with other RPers its all about collaborating to write the best story for both people. Its hard to say exactly what Good RP is, I think everyone has their own idea of that, but I think most would agree that Bad RP is being mean, power gaming, or ignoring other people. 
Hopefully the answers in this thread have helped you out. Hope to see you around!