Be sure to format your text as needed (bold, italics, font size, etc.) before moving on. A text box will appear on your document, and you can add your text by typing directly into the box. You can do this by selecting Insert and then clicking on Text Box. Next, add the content you want to appear on your labels. From there, select the Paper Size dropdown menu and choose the Avery label template that matches your label size. Select the File menu, then click on Page Setup. To get started, open a new Google Docs document.