I notice this all the time. Does this mean anything? A few days ago I recall this strange instance. Pretty much am walking past three girls all within -+ 3 feet of each other, as I walk by almost every single one of them does this thing where they wave the hair from their faces and tuck it under their ears. It's something I notice a lot as I walk past a single woman, I didn't think much of it. But seeing three do it at the same time was quite the coincidence.