The guest buyer view allows you to see how guest buyers in the online trade show will see your portal.
You can first setup the view for your guest buyers in
Admin > Settings > Online Trade Show Setup
Once you are in the setup page, you can either whitelist all products for your guest buyers to view, or add a new rule. Using the whitelist rule, you can select buyers see all products in a specific season, color, department or category.
After you've setup your guest buyer view, you can review it in your portal using the "view as" button.
You can confirm you're viewing as a guest buyer by the eye icon with the text "Guest Buyer".