Avoid any sense of bias in your descriptive thesis. You can observe and record sensory facts without providing any internal analysis about their meaning. For instance, if you observe your subject demonstrating a quiet, reserved manner, avoid phrasing your description as “pitiful"—words like “pitiful” are analytical in nature and create a bias against your subject. Emotional phrases, or words that relate your feelings about what you see, are irrelevant in a descriptive thesis. If you describe the scene as you see it, your reader should experience the same emotional feelings you witnessed in yourself.