More Social?

I think I've been more social lately.  I've been greeting people that I have met throughout the years without hesitation and I'm actually smiling a bit more.  However, I'm still giving off a vibe that freaks people out.  The pizza guy at Cafe V., for example, greeted me several weeks ago, and when I greeted him last week, he had a nervous look on his face and seemed hesitant at responding.  It's pretty much the same everywhere with everyone else.  I still get the jitters when I see someone I know, but it's slowly starting to go away.  I hope this means I'm making progress.