so i added this girl and opened up a chat with her.

Me:didnt we use to go to difeerent schools togheter?
HB8: what?
Me: Its a joke, you know that right?
HB8: i dont understand..
Me: i guess your not very funny then..?
Me: Well at least youve got looks on your side
HB8: funny? you were boring
me:No im funny as hell, if you only knew
hb8: haha okay
me:youd never be able to stop laughing
me: What strange thing are you doing with your hand on you profile pic, are you trying to pose for me?
hb8: What do you want?
me:what makes you think that i want something?
hb8: Your writing:P
me:maybe im just really bored ?
me: or maybe i just want to talk to a hot girl..?
me: guess


So i want to know if i did anything wrong, what i can improve and how i should go from here, if you have any tips and tricks please share, i will be very greatful

Meh...Pls don't be offended by what I say but your opener quite sucked and DLVd you.You made another mistake by telling her that you asumme that she poses for you,that means arrogance , or cocky and not funny.You also told her that you're bored and looking something from her,you shouldn't DO THAT , she should look something fun from YOU!!!
You should try to be funny and cocky maybe something like this if you have no problem sarging on fb like I do.I'd try something like this (though it's not the best but i like it):

You: Excuse me , but I have a really really important question for you ! (you say it's important to get her attention)

Her : "random response" (if she responds you're in , that's how it always is with online sarging)

You : Red or Blue

Her: "if she asks another question like what? or what does it mean? you tell her to answer cuz it's just one word, or if she answers:

HB picks blue - you: Oh so you like guys with blue eyes,I know your personality now.

Hb picks red - you : Oh so you are a naughty girl,red means bad,you've been a bad girl haven't you?

You can change it into a more funnier way,but the point is , make her answer an "important" question than if she answers comment something funny about her answer.

Btw try to sarge face to face.It's better and makes you better.

Thanks, very nice of you to take time to help me,

i found that opener at these forums so i decided to try it out hehe but it didnt work it seems

Well did she ignored you totally? Tell me how did it go?

well after this convo she stopped replying

Well , if that is the case , than you should stop looking for total strangers,and look for friends of your friends if you know what I mean.In other words,comment on pics of girls,or guys (with hot girlfriends ) that you know , and comment something funny about them or the picture.Or if you are in a discussion,say something funny,girls will like it , because they think you're a funny guy and are curious about you ,especially if they know that friend of yours,and don't know you yet.The sad thing is , you have to be in good terms with that friend of yours,because she might ask that friend who you are.

So if sadly you have no friends yet you have to make them dude.It's a fact that having 100 friends on FB,does not turn a girl on,and having a huge social circle is the most important quality for getting a super hot girlfriend.

i have 283 friends on facebook

Do you actually know many of them in RL?If yes,then comment something funny about their pics.

well i know at least 200 of them

Well that's good.Keep in contact with somebody with nice friends,and then comment on their pics,and show your awsome personality with those comments.Well that's what I did , and I got 2 frends requests from 2 girls(though I have met them before) with a lil bit of comments.