Bicycle riders must follow the same rules of the road as automobile drivers and have the same rights. Always ride with traffic. Bicyclists must travel in the same direction as cars, with the flow of traffic, and not on the sidewalk, when possible. Obey all traffic laws. Yes, you must STOP at intersections.
Pedestrians have the right of way.
Likewise, pedestrians should warn bicyclists when they place them in danger. You should also warn drivers if they are placing you in danger with their driving - a quick yell to get their attention should suffice. Take extra care when passing parking lot exits. When getting ready to turn left. When passing a parked car or to avoid other objects.