1: Display Categories
In Gmail, hover over the navigation menu to the left of the page
. Click More. Scroll down to categories and click the drop-down icon
to the right of it. Under ‘In Label List’, check Show.
2: Browsing Categories
Categories will now display below Spam. By default there are three categories: Social, Updates and Forum. Google will automatically allocate emails to categories, depending on their content.
3: Moving emails
If an email has been added to a category that it isn’t meant for, click the checkbox next to it. Then click Note “Category Name”. Or click the tag icon and reallocate somewhere else.