member comments on other members pics

Can someone please tell me how do I find, when on the newsfeed, that another member has taken the time and effort to comment on a photo (or photos) of mine. I would like to thank them for taking the time to " rate". ( NB. I am pleased to see that the size of the photos in the newsfeed have been reduced in size for easier scrolling!!! )

Hi there, To reply to a comment you will see comments like this: You can then click on 'message back' to send them a message. We are going to implement the ability to filter the newsfeed so that you can see only your comments soon.