So follow the below tutorial to proceed.
But to let you know that this game isnt only made for offline playing yet.
It could also be played in online mode.

You could also create a new Nintendo account if you are not having any before.
To add someone, tap on Add at the bottom.
You could use someone elses ID on the same screen to send them the friend request.

You could also set the time limit for the game with the other players competing.
How to Hide Apps in Realme Phones
Google Chrome Not Saving Password?
8 Ways to Fix it
How To Fix Mobile Hotspot Connected but No Internet on Android




