it is true, i need to know a little bit about you before answer this question, but i'll just answer it anyways.
if you want to talk her, talk about random things that come to your mind. tell her about yourself, ask her questions, find out things you have in common.
whenever i liked someone, i always talked to them like they were my friend. also talking about random things to them kinda drops a clue that they like you. so if you wanna drop a "clue" to them, you should do that. good luck
