If a car in the lane next to you puts their turn signal on to indicate that they wish to move into your lane, do not immediately speed up to prevent them from moving over to your lane.
Yellow lights mean "slow down" - not "speed up so as to avoid having to stop at a red light."
Shouting at drivers and making third-finger gestures at them is rude, period.
Don't talk on your mobile phone while driving-it distracts you, puts others on the road in potential danger, and is illegal in many places like New York.