How do I know if someone likes my Facebook page?

Related questions

1. What is the difference between reach and views on Facebook?
2. How do I find out who is following my Facebook page?
3. How do I download all my data from Facebook?
4. How do I Analyse my Facebook page?
5. Can you download Facebook posts?
6. Can I download my Facebook?
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Tags

1. #click
2. #selected
3. #pages
4. #other
5. #likes
6. #people
7. #right
8. #someone
9. #facebook
10. #upper
11. #steps
12. #settings
13. #verify
14. #following
15. #however