Can you actively and readily control your shoulder?
Here (video: https://www.instagram.com/p/B52XXsFjQzw/) I focus on scapular depression and shoulder adduction/extension while gaining a sense of contraction through the latissimus dorsi, teres major (posterior deltoid and several other structures as well). Some people don’t care for the hand pressure or hyperextension at the elbow; but you could just as easily practice the movement while standing and imagining you are pressing the hand down into something.
Connecting with the back musculature and practicing all facets of shoulder ability is paramount in fitnesses. This little movement is a simple way to check some of the control and/or even work the back when adding the suspended tension of part of body weight.