When I trained for the Twin Cities Marathon in 2011 my Mom biked all my long Sunday runs with me. She ran for a long time so she was a good partner. Aside from kicking me in the pants once and a while she also taught me to say “good morning” to every person we passed on those early Sundays. It was a good distraction from aching knees and heat and ugh, but also a good social study.
Depending on the time of day, people are more or less friendly. The 7amers are super responsive and almost 100% of them return my “good morning”. The responses become less and less as the day goes on. It also depends on the Lake you are circling. Lake Harriet (my #1) is way more friendly than Lake Calhoun where they look at me like I am a freak-no matter what time of day. The older, early birds know my game. This was part of my trail yesterday.