The folks in Amsterdam are pros on bikes. They've been riding on a daily basis since they were just wee lads. I couldn't believe the things I saw them do on bikes. (Talking on a cell, carrying an umbrella, multiple people on one bike, dresses, suits.)
So if you are heading to Amsterdam, remember this: if you see a bicycle rapidly approaching, do not alter your motion in any way. Ever. Don't dodge left or right, don't slow down or run ahead. Don't be creative. They see you and don't want to hit you.
Several times early on, I nearly got creamed. Eventually, you'll resist the urge to "get the hell out of the way" and realize they will always work around you.