Interesting (I hope) tangent:

I'm autistic, which means among other things that my native modes of signaling are 'nonstandard'. I don't easily understand what most other people are trying to signal, and most other people don't easily understand what I'm signaling. (This appears to be due to both different modes of signaling and different goals.) Unlike some auties, I do emit signals in the 'normal' mode - they're just usually not very accurate signals of what I actually think or value.

I don't like being misunderstood, so I made a conscientious effort for a long time to cut my 'normal-style' signaling behaviors down to near-zero, if they were happening incidentally to something else - wearing the most neutral clothing I could find, for example, and not discussing my own preferences about anything without a clear reason to do so. Most of the specific tricks I picked up, I integrated as habits, so that the whole process didn't take a disruptive amount of mental effort, with the side effect that it's hard for me to pick out specific examples, but I did eventually get quite good at not signaling much at all. (If anyone's interested in specific examples, I'm willing to take the time to pull some out of long-term memory, but that may take me as much as a couple of days.)

The response to that was interesting. Most people appear to be very uncomfortable dealing with someone who doesn't signal, and the pressure to do so was significant. It also appears that refusal to signal is taken as a signal of either untrustworthiness, extreme shyness, or disdain, depending on the heuristics being used by the person observing it.

So my experience is basically that we as a society are in a nasty feedback loop when it comes to signaling - it's simply not a viable option not to signal, in most situations. People will read extra information into your actions whether you want them to or not, and if you don't choose actions that signal good things, your actions will be taken as a signal of bad things.

(I'm a stubborn cuss who cares more about her own ideology than she does about her social standing, so I continued not signaling anyway. The way I see it, other peoples' assumptions are not really my problem, but if I were to promote incorrect information, even nonverbally, that'd be wrong of me. Fortunately I've recently been able to move to a situation where I can signal accurately to the people I interact with, and do so regularly, and it works much better.)