There are some rules I try and follow, they aren’t too complicated and most will probably keep you from being a jerk.
Do what you say you are going to do, when you said you were going to do it
Don’t volunteer to take on a task if you can’t dedicate the time to do it right
Think outside your own 3′ personal bubble and consider how your actions AND inactions will impact others
Fool me once shame on you, fool me twice shame on me
Better to keep your mouth shut and let people think you are stupid than to open it and remove all doubt
Don’t get mad at people who don’t understand what you are trying to say; that might be your fault