My favorite film maker Alfred Hitchcock would constantly talk about the audience. He always had what each and ever scene was doing to his audience. Film making to him was the art of conducting an audience like a conduct would conduct an orchestra.
When sitting down to craft your screenplay are you only considering the characters on the page or are you thinking about the audience that someday will be getting to know them. When you have mastered your craft you will find yourself considering what each scene and within those scenes what each line of dialogue and or action is going to be doing to this audience.
The first and best way to get the audience involved with your screenplay is to get them to care about you characters. These characters do not have to be likeable, but they do need to be understandable and relatable. If they care about your lead character or villain then you are half way home.
Thank you very much for visiting my blog. If you are interested in learning all the basics of writing a micro budget screenplay then I would recommend my ebook on the subject. Good luck with your screen writing and have a nice day.