People Watchers Have The Best Perception
There are two separate types of people, those who walk through life with blinders and those who walk seeing everything life has to offer. It is easy to say that, because in my life's experience, I've also come to learn that those two types of people can be put into a separate category as well. Those who watch people and those who don't.
Those who do so, get the enrichment of seeing someone and learning from them, without ever meeting them. There are lots of people, who will just sit in a seat, just to watch what happens to be going on around them. This is very smart, if you go to one or two specific places more often than others. Those who don't bother to watch others, walk blind into events or chance meetings with others, without knowing anything about those who are around them normally dismissed.