First, using your first chapter, look at all your dialogue tags and choose one of the following remedies: remove the tag, change the tag to “said” or “asked” or change the tag to an action or emotion. You’ll be amazed how many are unnecessary. Have fun!
In the past, you may have noticed that a comma or period has been placed outside the quotes of a single word. This illustrate another editing dilemma. It is beneficial to think of your main audience when editing. In American English, commas and periods go inside quotation marks all the time, no matter what. In British English, commas and periods go inside if it is part of the quote, but outside if it is not. Example:
Change the tag to “said.” American English
Change the tag to “said”. British English
Where will you be selling the majority of your books? Edit to your main audience.