Step 2: Annotate References in Zotero
One the annotated style preference is installed, you can annotated references from within Zotero. Simply 1) select the reference you want to annotate, and 2) add your annotation content in the "Extra" field of the record to the right-hand side of your Zotero application.
Step 3a: Select References for Annotated Bibliography
When you're ready to create your annotated bibliography, 1) select the references you want to include, and 2) right click on the selection and choose "Create Bibliography from Selected Items."
Step 3b: Export
At this point, you will be asked to choose a citation style. Be sure to choose annotated. Select how you want to save the bibliography, then click OK.
Your Bibliography Export
Your bibliography will export in .RTF format which can be copy/pasted into a Word document.