The quest log is pretty good about telling you what you need to do next, but there are times when other scenes may be needed first, which may not always be mentioned in the quest log. One thing which you can do, if you get stuck, is to go into the Recollection Room, and find the mannequin for the scene you're trying to unlock. It should list the other scenes which are required before that scene can be viewed.
Between the quest log and the Recollection Room, all of the hints you need should already be in the game. Just remember, if you've done everything which the quest log and Recollection Room say is required, and you still can't get a scene to trigger, sleep it off.