Divided into 4 groups
○ Number/Sequence
- Help the audience visualize number or understand a process from beginning to end
○ Emphasis/focus
○ Illustration/Location (ลักษณะ เปลียบเทียบให้เห็นเป็นรูปทรง)
- Help the audience visualize the size ,the shap
○ Comparison/Contrast
- Understand differences,advantages , and changes
Gestures energi