Guess the personality

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Across
  1. 4. It's synonymous whit excitied
  2. 6. Contrary to brave
  3. 8. The character of a superhero
  4. 10. Person who only cares about himself
  5. 12. It's synonymous whit positive
Down
  1. 1. Communicative and expansive person
  2. 2. Person who thinks about the good of others
  3. 3. Person who doesn't want to do anything
  4. 5. Person who alwais tell the true
  5. 7. It's synonymous with boring
  6. 9. Contrary to detestable
  7. 11. Person fearful with others