That's weak, wussy game that women can detect a mile away.
And thanks to television shows and "pickup artist" stuff, women know all about the routines and openers you use.
And sometimes that knowledge will be enough to give guys approach anxiety right away.
Ultimately, it really boils down to a feeling of control over your own life.
I think that every guy has had that feeling - almost like being possessed - where you just can't seem to control your emotions, or your own behavior.