So, I am new to all this.
When running and you come across another runner coming the other way, what should you do? Smile, say hello, or wave/salute like dog walkers do, or just pretend that the other person does not exist, like on the tube?
I have only passed someone in the opposite direction once so far, and just kept my eyes down, still embarrassed to be a novice runner who probably looks like they have no idea, but wondered afterwards if I had been rude.
What the norm?