So this is not my own made up opener. I got it from this forum and wanted to know if i could use it after sitting next to some one at the gym on those cycling things

1. The "you are dumb" opener:

Me: "so my buddy and I were talking about ]blondes vs. brunettes earlier today and we need a female opinion. I think brunettes are smarter and he thinks blondes are more intelligent. Let me ask, are you a natural blonde?"
Her: "yes"
Me: "good. So you think blondes are smarter then?"
Her: "of course!"
Me: "ok, let's prove it then. Let me give you a test..."
(Play the 5 questions game. She loses)
Me: " I guess you proved me right. Brunettes are smarter *grin*"
(Immediately after turn your attention to someone else, preferably a brunette)

I will maybe have to leave out the 5 question game and it would not be used to open a group of girls. Instead it will be for the girl sitting next to me. I will also do it on my own