A strap that bothers her gets fixed all night. A strap touched once, right after his eyes land there, is doing a different job.

It might be a necklace centered with two fingers, hair moved off one shoulder, lipstick checked in the black glass of her phone. Small things. Easy to deny. That is why they work in a room full of people.

She gives him somewhere to look, then goes right back to laughing at whatever her friend said. If the friend catches it and hides a smile in her drink, the message probably landed.