emotion

1. feeling

1.1. being joyfull

1.1.1. excited

2. express

2.1. crying

2.1.1. smiling

2.1.1.1. eyes

3. how you can show it

3.1. body language

3.1.1. facial expressions

4. mental state

5. mood

6. realtionships

7. mix of feelings

7.1. sadness

7.1.1. happiness

8. friendships

8.1. fights w/ friends

8.1.1. good thing

8.1.1.1. bad thing

9. to care for something

9.1. take notice