Sooo... there's a girl in my class in school I know for more than a year now. I didn't do anything since a month ago or so, barely talking at all Well at least I didn't get friendzoned that way

I got "plenty" of IOIs. In the M3 model we are in A2. I didn't compliment her at all I think, only very indirect like "oh didn't you have bracelets just some time ago? bla" (meaning: "I finally noticed obvious stuff. Here, have some of my attention")
Does the game work over long period of time? Because I think she is still attracted even after a month. Yesterday an IOI, today an IOI.

So, finally I want to do a close, I'm interested in ljbf because she laughs about everything, a fun person to have around. I have a gf and don't cheat. But I want to have the feeling that I could have had this girl if I wanted.

Here's what I think of, roughly:

Me: Bla i like your shoes! (qualify not directly)
HB: blabla
Me: I like your personality, you laugh about everything and such, I just like it!
HB: blabla
Now I want to try the "other 3 seconds rule", stop talking in the middle of sentence for 3 seconds, if she is not questioning it, she wants to kiss?
Me: Do you know what you... *stop talking* *stare* *mischievous smile* Do you wanna kiss me?

I have read that in The Game, is it actually a serious test? Or was it just a joke? I'd just plainly ask to kiss then. If she says no I will catch a lil sheet of paper and a pen out of my pocket with a checklist "YES MAYBE NO ???" with checkmarks on each column, so I can play it off as her just being another girl I ask to get some statistics or whatever I mean I need to see her afterwards all the year and everyone else she would tell this embarassing mishap.

What do you think about it?
Thanks in advance

Edit: Just got reminded by a friend. Like Mystery did. If she says no, wouldn't it just do it if I said "Oh, you just looked like it"?

And if she asks "Don't you have a gf?" can I treat that as a yes? Or should I just push it again? "Do you want?"