Although I haven't been bitten by a rattler and have no desire to be I've read about the victims. Most of them fit a certain profile. Apparently they're heavily tattooed, almost always men and usually drunk.
I've decided that the best strategy to avoid being bitten when encountering a rattler is to not be a man, tattooed, or drunk. Sometimes not being these things is difficult so I have some ideas. If you mince past the snake it might not recognize that you're a man. Roll your sleeves down over your tattoos and if you've been drinking then hold your breath.