Ioi

If she asks you what your name is, that's an IOI. If she asks you if you're single, that's an IOI. If you take her hands and squeeze them, and she squeezes back, that's an IOI. And as soon as I get three IOIs, I phase-shift.

She gives you a fake IOI to see if you will start chasing her.

Pickup artists must continually gauge their reactions, seeking IOI, or “indicators of interest” from the opposite sex.