Hamlet’s advice to the players continued…
Nor do not saw the air too much with your hand thus, but use all gently;
I think you know what this is about. Have you ever seen an actor (or someone in your life) who repeatedly uses the same gesture? It gets old pretty fast. We all have this problem to some degree, but it may be harder to notice in some. Video tape yourself acting a piece and watch it in fast forward. If you see the same gesture over and over: stop doing that! Actors sometimes feel the need for one super strong gesture but it can get pretty annoying. Find actions that match what you’re saying. A downward chopping motion into your other hand means nothing.
for in the very torrent, tempest, and as I may say, whirlwind of your passion, you must acquire and beget a temperance that may give it smoothness.
I’ve seen an actor onstage who was trying to be mad who just walked back and forth and did the same hand gesture over and over and over. Don’t be him.