“Hey, look at that girl/car/tree/Chihuahua” isn’t a left nod. It’s eye contact, then you look at the thing.
“Come here/go there, let’s talk” isn’t a right nod. It’s a weird neck movement where your head is kind of sideways and you’re nodding in the direction of the place you want them to go. You usually use “Hey, look at that tree” first before you try to get them to go to the tree to talk.
Can confirm up and down are correct enough, though. Up is for people you know, down is for people you don’t.
Why is this so accurate?
It’s not.
“Hey, look at that girl/car/tree/Chihuahua” isn’t a left nod. It’s eye contact, then you look at the thing.
“Come here/go there, let’s talk” isn’t a right nod. It’s a weird neck movement where your head is kind of sideways and you’re nodding in the direction of the place you want them to go. You usually use “Hey, look at that tree” first before you try to get them to go to the tree to talk.
Can confirm up and down are correct enough, though. Up is for people you know, down is for people you don’t.