If you know how to EYE FUCK it would be great.
You can look at a girl whos looking at you.. she will look away.. keep eye contact.. if she looks back that means she's interested just go approach.
By eye fuck i mean go
http://www.youtube.com/watch?v=bzz99f_T8Rk
my favorite EYE FUCK so far skip to 1:15
I NEVER Wait for IOI to approach its kinda too safe and too many questions (more you think about it the more you get approach anxiety) about if that was an IOI or not.. just go approach make ur self interesting. or open any girl u like by asking her which colon is better or shirt ..etc and tease her about it. (or you can go direct like many forum leaders like to do and compliment her clothes, style... etc and give her advise on how she can look better... or just ask her you are looking for a bday present for ur GF how can she help(gambler unbreakable opener).