Give cute nicknames to your FFXIV companions.
Type [/petname] to open the pet settings. The following panel will show.
Summon any companion and the panel will update.
Select the long gray bar and type a name. After having typed the name press [Save Name].
Resummon your pet (or look away and back) and... There he is, little JimJim!
You can remove a nickname at any point by clicking Remove Nickname and then resummoning your pet.