There's a lot of conflict around sharing emotional signals intentionally without realizing we're already doing that.
I personally believe that emotions are best to be understood regardless of what party is considering them, businesses, partners, society, etc.
On this point in particular (that we’re broadcasting these signals), in one of the AoA courses I took there’s an exercise where you and a partner take turns guessing at the emotion the other person is feeling. You’re just staring into each others’ eyes on zoom, and one person is going “angry. sad. joyful. fear. Angry again.”
When I was the guesser I had no idea if I was even in the ballpark.
But when the other person was guessing my emotions, they were probably 70% accurate with what I was feeling. We discussed afterward and they had the same experience (I had apparently gotten most of them right). It was wild.