I met too many people to greet everyone, but there were a handful I recognized so "started working on them." A walker a half mile from home ignored me for quite a while but then started returning a "good morning" with a smile. I figured out where she lived and pointed the townhouse out to my daughter with the story on one of our tandem rides. Her response? "Oh yeah, she asked me once if you were my dad." Huh???? Turns out she was an assistant at my daughter's el ed school and somehow pieced things together.
In Minnesota, the true sign winter has begun and ended is when the joggers greet me. I get ignored most of the time, but when winter is here, there's always a wave or hearty greeting when we meet out in the cold. Then it warms up and the fair-weather joggers show up and it's back to joggers and cyclists ignoring each other.