Definitions by Kurent

IOI 

An Indicator of Interest. Jargon used by a PUA. When he is talking to a girl, she will IOI him with subtle things, a trained eye can pick these up easily.

After three IOIs it is possible to go in for the kiss

Examples of IOIs:
1. If she starts playing with her hair
2. If she laughs at things that are not funny (being giggly)
3. If she asks you her name
4. You squeaze her hand, she squeazes back.

IOI by Kurent August 12, 2006