In this section I'll just do a very quick explanation of how to populate your island with villagers who will walk around your Dream Address in order to make your island feel more populated.
All you have to do is start by creating a new user on your Nintendo Switch by going into the settings and looking under the user options. If you're just wanting characters to walk around your island Dream Address, there's no need to link this profile to a Nintendo Switch Online account.
➊ Open ACNH and make sure you use this new user profile.
➋ You’ll see the opening scene with Timmy and Tommy asking for your details.
➌ They’ll ask if it’s your first time applying, when prompted select: “Yes, it is!”
➍ Fill in your details when prompted, name, date of birth etc.
➎ Then you’ll get a cutscene taking you to the island.
➏ You’ll have a lot of button-mashing to do at this point, Tom Nook will give you an introduction speech.
➐ When he’s done talking, you can place down the tent for this character if you wish but if you want to have the resident wandering around as if they're a tourist, you can just save and exit the game and you're all done !
Additionally, you can also leave out clothes for this resident to pick up and wear and don't forget to change their passport comment to whatever you would like them to say to visitors !
You can have up to 8 residents on an island so be aware of that small limitation !
AND THAT'S IT YOU'RE DONE !!!