a good way to build rapport is NLP if you know how to use it(so i hear)
but i good way i know is to ask a ? than agree with her answer(as well as follow up)
example:
u:which 1 of your parents do you like better?
her: my mom
u:why?
her: because we can talk about anything and shes really fun
u: me too, one time i almost got this girl pregnant and had to ask my mom for help buying morning-after pills(true story btw
) and she way really understanding about it.(in short)you have to try to make her feel like you understand where she's coming from.
oh and DO NOT INTERVIEW HER!!! its a conversation not a Job interview dont ask 1000 questions.
but 21 questions is a good way to learn more about each other
hope it helps