Not Personalizing It
The Apple Watch is, of course, a smart device. But it’s also much more of a fashion accessory than an iPad or MacBook. While it’s not strictly necessary, you should definitely personalize and customize your Apple Watch as much as you can.
That may include tweaking or tailoring the Watch Faces to your specific tastes and needs. It also could also mean buying additional watch bands so that you have a variety of options for different scenarios and events.