Watch how people drive their cars and then you know who to race. For example; a kid running it full out stop light to stop light, lighting up the tires (always) and over reving the stock engine with oversized non beneficial exhaust mods is of no concern. It's the guy that runs the car with skill. Quiet, limited screaching of tread, etc... I get the most looks and the most offers because I don't feel the need to show off this cars potential to just anyone. They have to be a worthy adversary first.
I get piped from everything from a chevy truck to a scrap civic to a mazda 3....if anything, it makes me laugh and certainly keep smiling! (that seems to aggrevate them even worse, wen you refuse and just laugh at them).