Non-verbal communication

1. Yesterday I was in a park and saw two boys speaking. They were pretty far from me and I could barely hear their conversation, but their body language told me that they were angry because each boy had closed fists.

2. One day I was at a library and I noticed a woman. I could tell she was nervous because her face became red, her head moved back and forth, and she was tapping her fingers on a desk. Then I realized the reason for her nervousness. She tried to explain how she lost a book.

3. I saw two women in a store. They smiled at each other and raised their hands to greet each other. From their non-verbal expressions it appeared that these two women were happy to see each other.