A nickname/short version of their name: Artemis -> Artie

A nicholasname/long version of their name: Mischief -> Master Chief

A cutesy version of their name: Lucy -> Uwucy (“oo-woo-see”)

An affectionate word that isn’t their name at all: Lil'bit, Sweet Baby, Bean

An insult (but with love): Dummy, Bastard Man, Mr. Butt

I only ever use their actual name

I don’t have a pet 8(