This one I know! I've suffered the "Open-Office Torture" many times, as a consultant.
First and foremost, pay attention to smells. If you bring your lunch, put it in the fridge or keep it in a sealed cooler. No paper bags at your desk. The smell is much more noticeable to your coworkers than you think. The same goes for trash - no food waste at your desk. Keep it in the kitchen / breakroom or take it outside. (I'm assuming you've got personal hygiene covered. Some people don't. Some really don't.)
Second - personal space. You can usually discern a "line" that segregates the individual workspace from the common walkway. Respect it. Stand behind the line until you're invited in.
Believe it or not, those two things will go a LONG way in getting along with your coworkers.
The rest are pretty common-sense. Take any personal calls to a breakroom, conference room, or at least out of the common workspace. If you plan on having conversations about the project that involve more than three people or will take more than 5 minutes, book a conference room. Book conference rooms if you are receiving client reps or vendors. No visually gaudy or politically-messaged items in your cube. (No, not everyone likes Teletubbies, Battlestar Galactica, or garden gnomes as much as you do.)
And, of course, try not to let others' transgressions of those rules get under your skin too often.