My current home town is bicycle-friendly. The local government wants everyone to sell their cars, and just walk or bike everywhere. They've instituted several measures to promote this policy, such as a blanket speed limit of 25 MPH over the entire town, and intersections that show red lights in all four directions for a full minute, for the convenience of pedestrians.
I happen to like biking myself, but I have to admit, a lot of the bikers here are spoiled by living in a bike-friendly town. They routinely pull off audacious biking moves that would probably get them run over someplace else. I've seen things which are both rude and dangerous, so today, I thought I'd list some helpful biking tips that will prevent bikers from getting hurt.
#1. Bike in the bike lane. AKA, not in the very middle of the street, or in the middle of the car lane. The bike lane is there for a reason, and that reason is your safety. Bikes aren't the same as cars, so there's no reason for you to be biking in the car lanes, when you have your own designated area.
#2. When you're biking with a group of friends, bike single-file. Do not bike side-by-side. When four bikers are biking side-by-side, they take up the entire road, and the car behind them cannot pass. It adds at least five minutes to my drive whenever I get trapped behind a group of four bikers.
#3. Use your turn signals. That is, if you're turning left, point left. If you're turning right, point right. Don't just swerve unexpectedly in front of cars and force me to hit the brakes.
#4. Use bike routes. When the sign say, "Bicycle Detour -- Turn Right", that means you should turn right and take the detour, instead of going straight. This should be obvious, but I've seen far too many bikers ignore the detour and bike right through Main Street, during rush hour. It's just not a good idea to avoid a bike route in favor of biking through the part of town with the most traffic.