A common short form for "indicators of interest", which is a phrase commonly found on forums for dating advice. Mostly describing the behaviour of women when noticing guys (at a club/bar)
- At a club, guys go after the girls who show IOI's.
When scouting a party for chicks, go after the ones who show IOIs
邮件由 email@example.com 发出。我们决不会发送垃圾邮件。