The Sims 4 Cats & Dogs Expansion Pack comes with 17 different traits that you can assign to your Cats and Dogs. However, there are plenty of other, minor traits – quirks which will eventually be assigned to your pet randomly. They mostly describe your pet’s obsessions and fears over certain objects, interactions and the way they approach to different things.
Modder MattBrancher came up with a brilliant mod which will show these pet quirks in the Simology section of your pet (or hide depending on do you want it to be seen). For this mod you’ll also need another mod that lets you control your pets.
Here are the mods that you need to download:
Once you’ve downloaded these mods, extract and paste the .ts4script file (from the Playable Pets Mod zip file) and the .package file to Electronic Arts > The Sims 4 > Mods folder. Make sure you’ve enabled both script mods and regular CC / mods in your game options.