On April 1, after talking to Blanca, he will, one by one, appear in your villagers' houses as a doppelganger, challenging you to determine which one is the imposter (a.k.a. Blanca).
Heads Up:
Blanca will NOT "impersonate" any villager with whom a player has never spoken (since the villager first moved into town).
Related Heads Up:
If Blanca "skips" any of your villagers, you cannot receive Blanca's Pic in the mail on the next day.
This is usually not a problem for mayoral players, because most players speak at least once after a villager has moved into town.
It could be a problem for those who want to use their alternate players to get extra pics, depending on how you use your alternate players (e.g., I rarely speak to villagers with my alternate players).
You could use stationery to check whether your player has spoken to a villager: if you can address a letter to the villager, then you have introduced yourself to the villager. Otherwise, you can just speak to villagers before you first talk to Blanca, to make sure.
Also, if you need help telling which one is the imposter, use the info in the Villager section of my FAQ:
http://www.gamefaqs.com/3ds/997811-animal-crossing-new-leaf/faqs/65246
Good luck!
Heads Up:
Blanca will NOT "impersonate" any villager with whom a player has never spoken (since the villager first moved into town).
Related Heads Up:
If Blanca "skips" any of your villagers, you cannot receive Blanca's Pic in the mail on the next day.
This is usually not a problem for mayoral players, because most players speak at least once after a villager has moved into town.
It could be a problem for those who want to use their alternate players to get extra pics, depending on how you use your alternate players (e.g., I rarely speak to villagers with my alternate players).
You could use stationery to check whether your player has spoken to a villager: if you can address a letter to the villager, then you have introduced yourself to the villager. Otherwise, you can just speak to villagers before you first talk to Blanca, to make sure.
Also, if you need help telling which one is the imposter, use the info in the Villager section of my FAQ:
http://www.gamefaqs.com/3ds/997811-animal-crossing-new-leaf/faqs/65246
Good luck!