This article explains how to invite and add friends in Animal Crossing: New Horizons and how to add friends on Switch.

Adding friends in Animal Crossing is a fairly simple process once the game allows it (on your second day of town or later). First, you’ll need to invite people to your town before you can add them as Animal Crossing friends in the game itself.

Open Animal Crossing on your Nintendo Switch.

Travel to the bottom of your island and board Dodo's Airlines.