What happens if you visit someone else's town and...

[MayorTian]

talk to a villager who is already in your town? Will they recognise you?

 

[mitfy]

nope, they will treat you like any other new villager.

 

[-Blue-]

Which makes sense, because they couldn't possibly live in two places at once.

 

[~Unicorn~]

yeah, in another town they won't recognize you.
but in another person's dream town that has the same villager as you, they will sorta recognize you.

 

[honeyaura]

Yeah, first time that happened I was so hurt that Peanut didn't recognize me lol

 

[AccfSally]

yeah, in another town they won't recognize you.
but in another person's dream town that has the same villager as you, they will sorta recognize you.

This

It happens if you currently have that same villager in your town; it only lasts for a second after you talk to them.

 

[-Blue-]

If you invite a villager back to your village with an amiibo card, they will also mention this seeming oddly familiar. But it doesn't go much farther than that.

 

[Ably.Saucey]

They will in a DA but not in just someone's town.

 

[MayorTian]

If you invite a villager back to your village with an amiibo card, they will also mention this seeming oddly familiar. But it doesn't go much farther than that.

Interesting so your friendship level starts again from the beginning?

 

[-Blue-]

Yeah, if you want their friendship back you need to invite the original one back from wherever they are. I actually don't know if their friendship remains the same though, because I never invited one of my original villagers.