I am sorry. I was not being sarcastic. I am surprised how many people don't give the basic "Hello" when they make eye contact with someone a go. When was the la

I am sorry. I was not being sarcastic. I am surprised how many people don't give the basic "Hello" when they make eye contact with someone a go. When was the last time you said Hello to someone you did not know, without any pre-existing reason for contacting?