What things do your favorite writers do that you've tried to learn and maybe emulate?

Ama be listing a few of mine

I love Patterson’s sentence structure and flow. I love Koontz’s ability to twist and hold suspense. I love the ease that Laurien Berenson weaves a tale. I love the way a dear friend and soon to be published author can find humor in every aspect of life without forcing it. I love the way another friend can turn a phrase so easily that her descriptions flow. Creative prose. I am a minimalist at heart, so my descriptions are short. While effective, I wish I had a touch of the extra!
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I also write concisely and strive to flesh out sentences and paragraphs. Steinbeck fascinates me.
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Establishment of tone through the 5 elements, using the conceit to the best of my ability, maintaining a consistent voice, experimentation with multiple POVs in one story are a few I’ve learned to incorporate successfully in my works.
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As an addendum to the OP what author did you pick up what from. For example, Vonnegut taught me a lot about creating concise sentences, and L'amour about not overdoing action
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Vivid imagery. I love painting pictures with words.
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And I love using the hyphen like Arthur C. Clarke
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Hit Amazon top ten and stay there. My books are in 6 million rankings within a week of release and stay there owing to me not having a spare few grand for promo
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Multiple subplots laid into the book seemlessly, and then they all come together at the end.
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The way they start an awesome story that keeps the reader engaged from the very first sentence. And there are more. :)