What are some rules for writing dialogue?
what does effective dialogue do for a narrative?

From what I know, the rules of writing dialogue are...

Use a comma to introduce

Use a comma when a dialogue follows quotes

Periods and commas go within closing quotations

Punctuation falls outside or inside closing quotations

Use single quotes when quoting inside dialogue itself

Use capitalization

Use paragraph breaks.

This might not answer your question fully but I hope this helps.

dude, * is in your own words, not mine.

* = the answer

what are you asking? this is gibberish.