Personal feelings and qualities

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Across
  1. 3. pleasing, attractive
  2. 5. someone who always wants to learn about other things and people
  3. 6. alone
  4. 7. timid, not confident
  5. 9. extremely rude and unkind
  6. 10. something that is surprising and you didn't see coming
Down
  1. 1. that can cause tension
  2. 2. highly pleased, happy
  3. 4. irritated by something or someone
  4. 8. impolite