Cícero's puzzle by João

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Across
  1. 2. A person who works hard
  2. 3. A person who is cautious with something/someone
  3. 5. A person who is not happy
  4. 6. A person who demonstrates love
  5. 8. A person who treats other people with kindness
  6. 9. A person who is not afraid of anything
Down
  1. 1. A person who is “not flexible”
  2. 4. A person who tells jokes all the time
  3. 7. A person who is neat