Where bike paths or lanes are available, use them. When traveling with a group, it is best to ride single file and never more than two abreast.
Signals are important. Turning right? Extend your right hand and arm in a horizontal position straight from and level with your shoulder beyond the right side of your bicycle. Turning left? Extend your left arm straight and level to the left side of your bike. For slowing down or stopping, extend your arm downward to your side. By following the regulations applicable to motor vehicles (which the law requires you to do, like it or not), you make it less likely a motor vehicle driver will misunderstand what you are doing and where you are going. Such misunderstandings cause accidents.