I have 2 cartridges on the same 3ds, both with Streetpass. Which house will show up?

[nostalgibra]

If I street pass someone else who plays ACNL, which house will they see in the showcase?

 

[BeekeeperAngel]

whichever house is on the cartridge that's in your 3ds when the streetpass happens

 

[xcrossingqueenx]

whichever house is on the cartridge that's in your 3ds when the streetpass happens

That's good to know, I was also wondering this

 

[Snow]

Actually I think it's whichever was saved last. I have a digital copy and a cartridge and I streetpass out the one I saved most recently.