His hands trembling slightly, he raised the book to press his eye against the little window, and before he knew what was happening, he was tilting forwards; the window was widening…
There is nothing to pick up in this moment.
Technically this moment has 3 zoom levels, although the second and third are almost identical.
You can only zoom in from this level by clicking on the number 13, whereby you can enter Tom Riddle's memory.
Nothing to do but zoom in and back out.
Nothing to do but zoom back out.
There is a vague rattling sound, which is oddly audible even before you enter the Diary.