The positive puzzle

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Across
  1. 2. Can improve you perceived competences
  2. 3. Main ingredient of every american speech
  3. 5. Camillas
  4. 6. ... strategies for academia
  5. 8. Main goal of a conference
  6. 10. Words that should be avoided
Down
  1. 1. The positive word for "problem"
  2. 3. The number of "frightening"
  3. 4. Types of messages that can trick our "survival software"
  4. 7. How our introduction should be to catch attention
  5. 9. How negative answers should be