A few times now, I've caught up to a bike commuter and have had to stay right behind them because it was unsafe to pass. (narrow roadway/traffic). Then I've stuck right behind them because we're going the same way.
Is there something I should call out like, "I'm not passing" or "don't worry about me!"
Also, I feel like I should be saying something to fellow commuters when we're at stop lights. What do you say, if anything.