I'll add:
  • Do not pass on the right, period.
  • At stop lights, stop behind the riders in front of you. Do not go up on the sidewalk to the crosswalk and cut in front of everyone else when the light changes.
  • Do not say "Duh" when someone says "On your left."
  • "On your left" is said as either a courtesy or a warning, depending on circumstances. It means either move right or hold your line.
  • Ride like a good car driver. Hold a line, no sudden stops, no cutting others off, signal your intentions or hazards.
  • Learn to clip in without looking, so you won't be a hazard to riders behind you when starting from a stop.
  • Ride a pace you think you can maintain for the distance.
  • Have fun!