Subtext:

Most of the time it’s not what you say but how you say it. A few complimentary words, with the right tone of voice, can become a sarcastic insult. Subtext is the meaning behind the words, the emotions within the speech. The subtext is hidden below the text. Theres a method, think of an iceberg with the tip being the visible tip, with the deeper meaning underneath, out of view. Just like in real life a character should rarely say what they really mean, instead it should be subtly hidden amongst the text and in the actions of the character. It really helped me to understand what my character was actually thinking when I was saying her lines.