Explanation:
Dialogue should be realistic by fleshing out characters, giving them purpose, and illustrating them for the reader. defend characterize excite be humorous.
The art of writing dialogues is not learned overnight. It requires understanding and goes deep into the characters, and once when you start writing, your writings should flesh out the characters.
The words should syn with the purpose of dialogues written for a specific character. When the reader reads or hears the dialogues, the words read and heard should bring the image of that character in front of their eyes, they should feel and realize it.
It should make the reader feel excited to know more about, make them curious at the same time feel some humor about it, as that is the spice of writing effective and realistic dialogue.
Based on the story and as required, it should also defend, characterize and bring out the real picture as to why that particular character has been chosen for a given story.