i don't Know

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Across
  1. 5. is a popular free social networking website that allows registered users to create profiles, upload photos and video
  2. 7. give a call consisting of repeated light tremulous sounds.
  3. 8. the information about a particular person that exists on the Internet as a result of their online activity
Down
  1. 1. the beliefs or opinions that are generally held about someone or something.
  2. 2. reveal an inappropriate amount of detail about one's personal life.
  3. 3. to send quick text messages that disappear once the recipient reads them.
  4. 4. Image sharing; Social networking service
  5. 6. is a Chinese iOS and Android social media video app for creating and sharing short lip-sync