There's a lot of memories about today, and for once Jack's mostly enjoying them. In the last few months, he's learned a lot about connecting with other people and his past and while some (okay, quite a few) of the photos he comes across trigger sad memories, there a lot of good moments in there too. People he's loved and lost and, sometimes, found again.
He can be found displaying a variety of emotions depending on the picture, or even depending on which particular memories a picture evokes each time he looks at it. There is quite a lot of smiling, though.