i think that you have played it well so far. as she is a shy girl as you said, one cannot be so intense with the sexual and negging stuff. one has to keep it slow and pleasant. it is unfortunate that your sis CBed you. you still need to keep the contact with the chick until you see her. a month is a long time and if the interaction fades, it would be hard to start it up again.
so keep the interaction going on FB with C&F and deep rapport but the aim is to get her number so that you can call her, keep her comfortable with your voice as she got used to it when you guys were in person. here are some notes about rapport building and number closing.
building rapport is a very interesting process. in order to build a great emotional connection one must choose to talk about things which have deep emotional content. it does not matter what the girl does or likes, you can connect with her even if you have dissimilar interests. as you know all occupations and hobbies are completely different in their complexity, principles and structure, but there is one thing which all of them have in common/share "EMOTIONS". one must be empathetic and show a girl that u understand why she chose to do that job or hobbie by expressing the emotions that one feels when doing that activity, it shows that you're really trying to get to know her, and she will think "wow this is a great guy to talk to, he's making an effort to understand me, but wait, i dont know anything about him" and this will compel her to ask you questions and u can freely express yourself how ever much u want as long as u express urself passionately and positively. all the men dont do this at all and do not understand how much empathy is a powerful force and openly allow themselves to be perceived to see a girl superficially. you can use the concept of 'rapport' to ur advantage as well.
in order for you to build greater rapport with her, get used to asking more open-ended questions e.g. "what have you been up to?" or "What did u get up to today?", my one: "What monkey business did u get up to today?". dont use questions like "wats up hun?", thats a closed-ended question which the girl would simply answer and she wont give u much material to work on in order to reach the hook point.
and connect on her answers in a positive way. dont be afraid to tease her as well. dont be afraid to create impact. when telling a girl about a situation that happened to u on that day or in the week, give more details about it, women love details. it is also good to read the local news paper, women are usually very aware what happens in the world, u should as well. u can get her point of view on something in the news (nothing to do with which celebrity had sex with who) e.g. political, environmental, sociological etc and then she would ask you what u think and you can manipulate the conversation which can lead anywhere u want.
another way u can have an "endless conversation" is the principle of "Question, statement, Question, statement, Q, S, Q, S etc". so u ask an open question, receive the answer, and then make a statement about the last thing she said in order to ask a deeper question. this process can go round in a circle, it can go on for ages.
after you have the girl attracted to you and built rapport, here's how to make sure that you can get a definite number close and afterwards ensure a date in the future.
the way to ask a girl out is by 'offering' not asking permission, never ask "Do you want to go out tonight?" or "will you go out with me?" or "so what time are you free tomorrow?". They are all questions which AFCs do. they make a guy sound needy, desperate, dependent on doing something with her.
so before offering a date, let her know how busy and sociable you are. girls want guys who are difficult to get. usually in rapport with girls, to make sure she does not flake on u after the first meeting, there's a pua principle called 'seeding'. this is when u in plant an invitation in the conversation with her but u havent actually invited her. for example, you could say that "im thinking of going to this really cool bar sometime next week which i heard about". now usually when a guy mentions to a girl about going to a bar, club or party that u know, the girl will always expects the guy to automatically invite her. but what you would do is just to mention the party or the bar and continue on the conversation. this will catch the girl off guard and the girl will be thinking "hey, this guy is pretty cool (depending on the attraction and rapport), but he has just mentioned this party but why is he not asking me out?". she will think this and will be more compelled and desperate for you to ask her and she realises that she needs to work in order to get the invitation. women want to go to things that are hard to get into, exclusive and even more if they are told they cant go. people always want to go to things when they have been told they cant go. sounds so forbiden and interesting.
dont be in the position to be waiting for a girl to call you, women are lazy or busy but definitely unreliable. you make the contact. but when u contact, dont sound like you are too eager to see her, bad sign to show that ur desperate. in between texting a girl, act like u dont care if she ever replies back. i know it sounds crazy, but it does not feel good waiting, checking ur phone every so often seeing if the girl replies. have the frame of mind that u dont care about a reply, then u will feel less anxious, and more focused on ur game.
Hope that i have helped. happy gaming dude
CHAT