Ok well this is what my boyfriend does for me and im totally in love with him so you should do this stuff to get a girl to fall in love with you, but keep in mind him and I are dating so I don't know if your dating her yet. Well here goes:
-buy her flowers
-pick her up in your car for every date
-take her to resturants she's interested in, not just you.
-before you leave her house at night make sure she gets in okay
- get close with her family, family always comes first and if fam. approves thats perfect!
-write her a little letter every once in a while(she'll think its cute and your romantic)
-text her sweet things here and there (dont lie and say something bc you cant think of anything)
-when your in the car with her sing along to your favorite song.. girls think its cute
-hold the door for her all the time!
-actually pay attention to her when shes talking and help her out with her problems (if you cant just being there is what matters)
-compliment her (everyone loves complements especially girls)
-take her out to the movies (let her suggest a movie and if she asks you tell her the truth of what you do and don't like that way she gets to know you better too) and pay for her ticket
-don't be a liar
-don't flirt with other girls at all
I really hope this helps because my boyfriend does all this and I love him now.