I have few observations to make about other bike commuters because I rarely ever see any around here. I wish there were more.
I generally follow the same rules of the road as cars. I stop for red lights, stop signs and school buses. However, I generally do a rolling stop at stop signs, and I "run" one red light every day -- after coming to a full stop -- because the sensor will not detect bikes and won't change unless a car comes along. At 6:30 am, I might be waiting at that light for 30 minutes if I didn't run it.