It's not as if walking makes me suddenly introduce myself to people, or that doing so will induce me to somehow pick up... litter or the like, or somehow notice things I wouldn't otherwise.
This is what I don't get, that people think that walking somehow magically makes people somehow more social than they are. Maybe I'm wrong! But I'd like to see data that proves people are more social when walking than driving. I think the lack of social interaction is the controlling factor, not a particular mode of transportation people choose.
Sorry to hear that.