"Maybe people only ask you 'how you doing', cuz that's easier then letting on how little they could care" - Jackson Browne
I'm a really big fan of the nod, just for the sake of acknowledgement. No effort required. Occassionally I'll bust out the "hey" or wave if I really care. Question greetings are definitely annoying as hell.
When people do the nod what is with the weird little smile they get ~ does anyone know what i'm talking about? Looks sort of like this -- it's like a failed attempt a friendly smile that's more of a frown.
In my experience I have found that a "How are you?" ,or variation of, should be responded to with a different variation of the same or a similar greeting. For example, an appropriate response for "How are you?" could be, but not limited to: "What's up?", "How's it going?" or "How are you doing?. I think these questions have evolved into solely greetings which should be used without any expectation to recieve an answer to the question, but only another greeting in response.
I mostly just say hey. Only when i am interested how they are doing i ask more. if people ask me how i'm doing i always say good. even when i'm not doing good and i want to talk about it with that person, it is just a reaction. my other response is: i'm alive. KingCheetah about that weird smile, i do that, it is meant as polite and friendly.(but it is not a invite for a conversation, mostly the oposite)
i usually say "can't complain" i got it from my ornery Cajun grandpa, who usually follows this phrase with a litany of ailments... "hey Paw-Paw, how you doing?" "Can't complain, no... but i cant see good and my damn legs hurt"
and for all the sports radio listeners, what about the callers? tell me it's not annoying when every caller asks, "hey John, how's it going?", "What's up Matt, how are you doing?", or "How are you guys tonight?" AAAAAAAAAAAAAHHHHHHHHHHHHHHH!!!!!!!!!!!! what? you think their answer's gonna change 4 minutes from the last time they were asked that? it's plain r****ded when they've already answered the question 15 times within the hour.