In my experience, a good strategy is to read your notes aloud, preferably while walking. This forces you to really notice what is written, helps sustain your a

In my experience, a good strategy is to read your notes aloud, preferably while walking. This forces you to really notice what is written, helps sustain your attention (when you're walking and talking, there's not much cognitive slack for drifting off), will improve your memory (we tend to remember things better when we have spent a larger effort on them), and leads pretty naturally to reason aloud about what you have just read. Apparently, there used to be perambulatory monks that would follow a similar strategy, reading or reciting sacred texts while pacing around the courtyards of their monastery.