if more than 50% of people who walk past you change their body language

[Altruist]

the second they notice you, what does it mean? poll.

[kathisterima]

Change their body language how?

[Altruist]

Change their body language how?

they start smiling, blushing, lose their composure, get triggered etc (depending on their gender, looks, age, character, mood in that moment)

[RetrudedMaxilla]

you have it

[hello]

if you have it you'll know

if you look like a joke you'll know

[prince of shitskins]

Means you're not an npc. Sticking out is a good thing, especially if you're a repulsive subhuman

[cryingIRL]

it means something is uncanny about you, you are not fully there, you may be a threat. They out of animalistic instinct prepare against you.