I remember when I was visiting Amsterdam all the bikers were very quiet and knew what was going on, but being the tourist I was just walking around aimlessly. There was no yelling or anything, just a whole bunch of bell ringing. They definitely have their bike commutes down to a science.

This is an awesome video.

I'm waiting for that perfect DC Spring and Fall time to ride my bike. I just cant do it in the nasty humidity or cold wind. Im too much of a baby.