20. When people check out, invite them to write a comment in a book in which you register guest's comments and ask them if you can publish it on your website
23. Use them as quotations on your website, facebook/twitter/social network pages -> people highly value and are influenced by other guest's impressions
24. Print them and show them to the employees, it will encourage and motivate them
25.
26. Answer to people whose comments were negative on the websites to show that you are involved and care about what guests think
27. Try to find where it comes from (employees behaviour ? Quality of food ? Lack of communication ? Not enough staff ?...)