Friday the 13th

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Across
  1. 1. This was considered a friendly welcome sign in Early American history
  2. 7. This small plant is lucky.....if it has 4 leaves
  3. 9. Don't open this indoors!
  4. 10. A belief in something without any real reason
  5. 12. Don't pick this up if it is tails-side-up
Down
  1. 2. This large seabird is considered bad luck
  2. 3. Cat This animal is considered bad luck
  3. 4. If near this place at night, whistle as you walk by to keep away the evil spirits
  4. 5. This is considered bad luck if it's broken
  5. 6. If you knock the shaker over, throw some ____ over your shoulder
  6. 8. Don't walk under this, it's bad luck!
  7. 11. This large black bird is spooky