I think cold approaching is a win-win situation. Even if you get “rejected “ you still gain experience. You start developing a sixth sense when it comes to talking to women. You never know if a woman is interested in you or not until you approach her. Even if you get choosing signals, you still don’t know if the woman is interested in you until you approach. Women have to choose you twice. Once before you approach, and again during the interaction. You can’t lose by cold approaching.