Do you say hi to people waiting at bus stops with you? Or maybe to people going into the same cinema screen as you? You know, “fellow human beans [sic] - engaged in a similar activity”?
i will smile if i catch someones eye, at a bus stop yes, or even exchange the occasional pleasantry, or remark about the length of wait, weather or somesuch, yes.
Sometimes - on exiting a cinema i might even - shock horror - inquire as to how others enjoyed the film !!
I'm afraid i'm one of those annoyingly friendly people - who appreciates fellow humans - I like to acknowledge their existence.
I've often found it has led to some interesting - even useful exchanges.
But if, on the other hand, it appears that folks are not in the mood - then i will respect that too