Do this and shut up!

I’ve been out with some friends lately in a coffee. They brought with them a guy who isn’t really what you can call someone great with women.
He looked strange, smelled strange and above all talked really about some very horrible things to do with girls.
He still believes that you have to pay for girls and do whatever it works to win their approval.
A big mistake he was doing all the time was that whenever he saw an attractive girl walking by, he used a pick up line on her immediately.
At one point, he use one on a girl and then another one passed in the same place and he used the same pickup line, I think that the first girl probably heard what he says twice and started thinking that there must be an echo or something.
He really annoyed me!
What annoyed me even more is he stubbornness, whenever I tried to make something clear to him and give him my perspectives on what should work in some situation, he would start defending his ideas as if they were some kind of holly verses you shouldn’t mess with.
At one moment, I frankly told him that this attitude will never bring him success with women.
If you want to start attracting women today, you have to do what works and shut up, seriously.
Have you ever been stubborn with tips about women to finally discover that they are untrue?