Thank you so much !Your kind words honors me
But there are people here they are much better at gesture drawing than I.
You want some advice from me oh ... okay I'm not a good teacher but ...
However I can still try to explain to you how I go about it.
The first thing I do is as Marc explained in his video that you should first draw a line for the movement of the body.
Then I look in which direction the individual parts of the body move and try to reproduce the movement of the regions in a simplified way or even to exaggerate them. when a movement is heavily bent or stretched, i try to overdo it and give it "expressiveness".
Because for me it represents the meaningfulness of the pose and thus expresses "living" for me
So I'm not trying to reproduce the actual pose and anatomy 100%, but the movement (I don't know if it's that smart but yeah )
I did an example to explain it better.. unfortunately my english is not the best ... sorry
I hope the explanation and the picture can help you a little.