This step will guide you on creating a facial expression that is indeed, heating! 1. The brows should be pointing inwards at a sharp angle to show that it’s in stress. If you want the brows to appear realistic, add round pieces of flesh that tip the ends of the brows. 2. Mad expressions, just like sad, or embarrassed, have blush type marks. Adding these marks will give the emotion an interpretation of redness. 3. Generally, angry faces have clenched teeth and shading.