If you come to an intersection, stop, so that if there's an another driver who doesn't seem to know how to manage, just motion him or her to go ahead of you.
Yield to pedestrians, and try to give cyclists plenty of room. Remember, your two-ton vehicle is a lot more dangerous to them than they are to you, so it's your responsibility to try to make sure everyone is safe.
Don't tailgate people or refuse to let them into your lane.
Use your turn signals even if you don't think anyone is around - you never know if there's a pedestrian or cyclist you just can't see.