Change Positions Correctly - Generally, slow traffic stays right, so you should try to pass others on their left. Say "on your left" to warn the cyclist ahead that you are passing. DO NOT PASS ON THE RIGHT. In many cases a cyclist may not hear or be aware of you approaching them from behind. An unexpected noise may cause that cyclist to swerve in your direction when you pass. If approaching a lone cyclist, the offer of "good morning" or "nice day for a bike ride" lets the cyclist know your position and intent to pass.