Here are some examples of how dialogue functions:

。To reveal characterization
。To establish the mood or tone
。To disclose exposition
。To create tension or conflict
。To advance the plot
。To build suspense
。To establish foreshadowing
。To reveal backstory

Your characters are all different people with different word preferences and personal catchphrases and tonal patterns and vocal styles. Use this to your advantage. You are making a movie in your reader's head, so use these specific characteristics to your advantage.    

As a writer, you are also an actor, and if you are stuck on a line and need to act it out a few different ways to match one to your scene, so be it. Say it loudly, say it gravely, say it flirtatiously, whisper it; it doesn't matter. Try it out yourself and find what works. Your reader is going to be hearing this in their head, so make sure you convey it exactly how you want it to sound.

source: wordsnstuff

posted by: somniatis_