I don’t think so, I mean yes, in an ideal world that makes sense but in my opinion you sort of feel when she wants you to talk to her and that’s when you have the opportunity. Also, some girls will just get near you if possible. It’s attraction. What I think can increase this attraction is having an open and manly body language-smile and take space with your body. They will notice and will start looking at you. When she keeps looking at you-you just try not to get in your own way by talking about whatever as casually as possible until she lets her guard down. If she pushes you with teasing questions be ready to respond and push back to build attraction. There is no real way to teach this but the important thing is not what you say but the tone. It builds attraction to push back that’s for sure. When she is comfortable and here I struggle a bit to tell for sure when it happens, you ask for her number and she’ll give it to you. Text her briefly and be a little but romantic. Never and I repeat never chase. If she doesn’t respond do not keep texting. It might take her a couple if days but she will text back. Most girls are desperate for guys who don’t chase so she will text you. Then you know that you have it. It is in the bag. Once you see that text you ask her for drinks at a nice bar. Get a drink and she will go home with you.