Update - I think I now know where I went wrong
I now think I know where I went wrong the other day and it also explains how I seem to pass face to face in shops, but not at a distance in the street.
It's the walk.......
Today I set up my video camera and took many videos of my walk. I also remembered back to that day when I was walking past the coffee shop with all those guys sitting outside. I had felt a little nervous at the time and exaggerated the swaying hips just a little. Well on camera that exaggeration comes across quite badly - and it's this I believe that got me read.
It's funny because looking at the videos, I find I walk much better in heels than flat shoes.....