Dialog is an excellent way of expressing a characters motives, thoughts and opinions, but by itself it can’t express a realistic or emotional experience.
Creating an experience that that capture a reader are broken into three pieces:
- Mental responses
- Physical signs
When you have mastered these elements your character will jump from the page.
Your characters need emotions to be able to connect with readers. A reader who cannot connect with a character will dislike the book – even if there is a lot of sex, or zombies eating humans. Your story means nothing if there is no relatable character to talk you through it.
It’s not enough for your character to tell you he’s scared of the zombies, but what is he thinking? Feeling? And what actions is he taking to show us he is scared.