Ok. I have a girlfriend, so I know how to do this
Serious post.
Socialize with her and play some games with her (like pool, a board game) talking about small things such as "how was your day?" Could work after doing it a couple times. When it seems like she likes playing with you, say "are you available on the weekend?" If she says yes, then say "would you like to watch a movie on Saturday?" She may spond yes. Now the somewhat difficult part, the first date. So based on the example shown above, find her in the theatre, ask her what movie she would like to watch, pay for the movie and other things. Then go to the theatre before the movie actually starts. While you wait for the movie to begin, talk about things to learn more about eachother. Enjoy the movie (even if it is MLP, but if it is MLP, don't consider having a second date with this woman.) And when the movie is finished, if you truly like this girl, you should say "well that was fun, should we do that again?" If she says yes, good! She likes you and you like her! And that begins an excellent relationship! Couple tips, never make the date so long you feel bored or uncomfortable, and never act like you are trying too hard, girls can sense that, and they don't like that.
Not as serious but could work posts:
-get a wikipedia account, mess up a post, and make it say something about your love for the girl. Then get the link to the post, and put it on a peice of paper. Copy this a lot, and find a place where the girl may see it, and spread out the papers with the link, and spread it out on the floor, the girl may pick it up, and find your message. But you may find out another person got the message. So do this if you want the whole thing to be public.
-put your phone number on a peice of paper, and walk up to the girl and say
"Hey I just met you, and this is crazy!"
"So here's my number, so call me maybe!"
*give paper and run away*
Insane and will not work posts:
-get an onion ring and a friend, come to the girl and go down on one knee and say "will you marry me?" She will most likly say no (onion rings aren't the best...), but in the event she says yes, let your friend say "Isabella (let's assume that's the girls name.), do you take Yin to be your lawfully wedded husband?" If she sayed yes to the proposal, then chances are she will say yes to the marrige , then let your friend say "Yin, do you take Issabella to be your lawfully wedded wife?" Respond "yes", then let your friend say "By the powrr of Darth Maul, I know pronounce you man and wife, you may now kiss the bride" now close your eyes, puff your lips, and await a sucker punch to the nose and the girl running away.