To like a photo, schedule, speaker or exhibitor simply click the thumbs up button. To comment, click the speech bubble.
To see comments select the # next to the comment bubble, the total number of likes and comments will be shown with the list of comments by attendee underneath.
To download the Likes and comments go to Social in the Analytics section of the Lumi Dashboard and click the export button. In the excel will be a Likes summary and a comments summary tab