Drag to Assign Label

There are a few different ways to assign labels to emails in Gmail. You can use a filter to automate the process, you can move the email from the inbox to a label, or you can assign the label while keeping it in the inbox. Another method, not widely known, is that you can drag the label from the list on the left over to the email and it will assign the label for you.

Check out the video below to see this process in action.