Good Morning Fallacy

I was working with this concept for a while. I noticed one morning that if I said Good Morning to people, it made me happier. And the more people I said Good Morning to, the happier I felt.

But yesterday, I discovered the flaw. Generally, the way that a good-morning occurs is that I am walking past someone, I make eye contact, I smile, I say Good Morning, and I continue past. Typically the eye contact is met, the smile is at least somewhat returned and the good-morning is reciprocated.

But as I was passing a young-ish black woman (not being racial, just descriptive) I made eye contact, smiled and said Good Morning, but the woman did not smile and continued past without replying. And as much as the procedure usually makes me feel happier, it made me feel sadder; it made me feel silly and shallow. Of course it was just a tiny bit of that feeling, but it was there.

I guess saying Good Morning is a gamble...