How To Add Comments to Documents in Word 2010

hit the Review tab on the Ribbon then click New Comment.

That opens up a balloon pointing to the highlighted text you might leave your comment in.

This feature really comes in handy when collaborating on documents and for brainstorming.

Just highlight the existing comment and pick the New Comment button.

Then you’re free to leave another comment to the existing comment underneath it.

Just highlight the comment you want gone and nudge the Delete button.