In SharePoint 2010, you can rate a document or item
from 0-5 using the rating settings. In SharePoint 2013 they have added a new
option in Rating settings called Likes. I have a custom list named Custom
in which I will enable the Likes option and show you how
Number of Likes works. Click on List Settings in the ribbon
interface. Click on Rating settings under General settings section. You can
find a new option called Likes as shown in the following
figure.
![Ratings.png]()
Select Likes and click on Ok. Now in the list you can find a new
column called Number of likes where the user can like anitem and the number
of likes for that item will be displayed as shown in figure.
![likes.png]()