If you want to rate a video, click the "Like" button at the bottom right of the video player.
Currently, the feature to comment on videos is not supported.
You can not see the total number of "Likes" on a video player.
The holder (video sharer) can see the number of "Likes" for each video on the "Dashboard" and "Analytics" page. This feature is available with all plan accounts.
For more information on analytics, see: 〇 Analytics