All we need is likes

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Across
  1. 3. a cycle that is repeated over and over again
  2. 6. a message that is automatically sent to you on your cellphone or computer
  3. 7. confidence and respect for yourself
  4. 8. something given in exchange for good behaviour or good work
Down
  1. 1. the condition of being liked, enjoyed or supported by many people
  2. 2. the "feel-good" hormone
  3. 4. to move text or pictures up or down on a screen to view different parts of them
  4. 5. to affect or change how people think