I've been biking to work for over two years now. I rarely encounter another bike commuter on the road, but it happens now and then. Being a friendly person and thinking maybe we might need each others help out there some day, I always give a "good morning (or afternoon)" or just "hello" as I pass or am being passed. 99% of the time the other cyclist stares straight ahead and refuses to acknowledge or respond to me. Only once can I recall an occasion where the other guy actually initiated a brief, friendly verbal exchange. Is it just me, or other people notice this too, or maybe it's just us rude NJ people?