Why is eye contact considered an IOI? It's just normal human behavior to look around, make eye contact with people, smile as well. If random eye contact and smiles in passing was considered an IOI I must be a top level chad but that's literally just normal behavior. The only IOI in my opinion is when a girl approaches you and expresses direct interest by asking for your contact information in a daytime setting, or if it's at a bar/club setting she would approach you and be flirtatious etc.