Let's take a break from all the moving crazy-talk, hey?
Common courtesy. Seriously, I am big on this. As should we all be.
If I am going through a door and a mum with a kid in a pram are going the other way, I will step out of their way. That's just polite.
You know what else is polite? A thank you, a smile, even a nod. That'd be nice.
A simple acknowledgement of the other people in "your" space.