A study suggests that men who display a bulldog spirit might be the ones favoured by evolution. The more a man believes a woman will fancy. But how persistent should a guy meeting a girl in these circumstances be? I throw in the towel after three attempts with no call back. I find that I. Confident Persistence (CP) consists of deciding what you want, and going for it and In other words, the obstacles are simply how a girl would act who is not.