In Deadwood SD, I went into a store front that the Hell's Angels rented . They were recruiting new members. There were HA chapters there from all over the West. I'm not advocating for the HA but they were some of the friendliest people I've ever met. They were so friendly I almost joined! LOL.
Seriously, churches ought to be the friendliest places in town. Not just a quick "Hey" and move on but a real taking interest in people and getting to know them.
We should work on that.