well dont act like and idoit for one thing just get to know her and find out who she is than she will start to signs of wether se likes you or not but dont over do it or do anything dumb to make her...
take her to a romantic placee and then just start to take her shirt off and then take her braw off and then kiss her and sqeeze her nipples then kiss her on the nipples then take her to your bed or...