If you don't have many customer reviews yet, testimonials are a great way to increase social proof.
You can place your testimonial carousel widgets anywhere on the site, including the cart page or home page.
How to add a testimonial widget
Click the '+ Add Widget' button at the top right within the widget section.
To select a location for your testimonial widget, follow the location help doc.
To customize your testimonial, check out the design help doc!