I smiled and said hi to a lot of people in the grocery store today. The funny thing about people is that if you say hi and greet them first they almost always great you back and exchange pleasantries. I live in a world where strangers always talk to each other because I make sure it happens, if they don't say hi first I do. I probably often do, I don't keep score.
I talk to people in public all the time. It does good. It reminds people that we are all in community, we are not just individuals going about our days business.
Connecting is good.