cramer wrote:You say "rider up" when passing people on a paved path?
When hiking / walking I really, really dislike it when someone on a bike whips past me just shouting "on your left" or whatnot. It feels like the cyclist is commanding me to watch out for them. I feel the best thing to do on trails is exactly what Doc_d describes; being polite and not demanding, saying hi, and arranging a friendly, easy passing.
On pavement if the route is sufficiently empty/wide I just pass safely without saying anything. Since I'm usually far enough away for it not to matter, everything's good. Often I find that smiling saying hi goes a long way, particularly when traveling in opposite directions. If it's crowded I defer to the trail stuff listed above, but if it's really that crowded on a paved path I'll try and find another route. Riding amongst crowds of people (read: PCT near Rochester on a springtime / autumn weekend morning) just isn't much fun.