Let me see if I can find a few articles I posted here before on how to read l2s.
Of course, that is basic knowledge. I'm afraid that really reading them, learning the timing and interpreting the movement, is part art, part science, and can only be developed by watching them intently day in day out, and seeing how what pattern plays out in which way.
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If you take anything I say as advice, you're crazier than I am.