Also, never iniate the recognition ritual. Only acknowledge the other rider, afther they have acknowledged you.
Given, however, that it is uncool to not acknowledge another rider, this becomes a game of chicken, as to who will blink first.
__________________
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.