There seems to be a ton of topics coming up recently where people are saying that they are in a set, but they are not sure if the girl is giving them IOI's. I think this is a really bad path to be heading down. I'll try to give you a better way of organising your thoughts...

  1. Do YOU find the girl attractive and want to get her number, get physical or intimate?
  2. If the answer is yes, then escalate. Assume the girl is attracted to you until she shows you that she isn't. YOU DON'T NEED IOI'S TO ESCALATE!!
  3. If the girl resists, then she's either not interested, or you need to go slower.

Honestly, if you get to step 3 and a girl resists and you just bail, that is still a better result than being a guy who is sitting there thinking "hmm, I'm not sure if she gave me any IOI's, I guess I won't even bother trying". Leave it up to the girl to reject you. DON'T REJECT YOURSELF BY GOING INSIDE YOUR HEAD AND WORRYING ABOUT IOI'S!

No, this does not mean you should just start trying to kiss girls in the first 5 seconds of conversation, that is just going to get you slapped. But you can start at the bottom, a quick touch on the shoulder, a thumb war, teach her a secret handshake, ask for her number so you can hang out later or whatever. If the girl is not comfortable she will make it clear very quickly. You don't need to concern yourself with positive IOI's whatsoever. You only need to be able to sense when a girl is not comfortable or not interested in you (which is a hell of a lot easier than analysing what a hair flick means).