When driving slowly through a town or shopping centre I may spot someone of interest on the footpath and be consciously aware of them. Maybe they are walking funny, or wearing something odd, maybe it's a good looking woman, it could be anything that catches my attention. I can't tell you how many times over the years - hundreds, maybe thousands - that person has turned around and looked directly into my eyes. More often than can possibly be put down to coincidence. As I've said before, if it's coincidence then that word needs to be redefined because it's more common that it ought to be.