This is a quick piece of advice I have for riders based upon something I encounter every day on my commute. I will start with this picture -
Basically the path I ride on goes from wide to narrow for short stretch, and the narrow part just barely gives two riders room to pass each other. The issue is that when some riders see me coming at them on the narrow stretch, they freak out a bit and stop pedaling.
I am no physics expert, but the problem in simple terms is that when people stop pedaling, they start to wobble and have less control. If you just keep pedaling, even if you are not pedaling hard, it is EASIER to control your bike and keep going in a straight line. I am sure someone out there can more eloquently explain this, and I welcome readers to do so in comments.
Moral of the story, forward motion can be good for controlling your whip on narrow pathways. Carry on . . .