Well, sure - if they are being unclear and you really are uncertain of their meaning, it is wise to ask. I will do the same. I was thinking more of cases where someone's words are clear. Say you ask a friend if they are willing to help you do something and they say that yes, they are; but then you discount this because of some nonverbal cues that you interpret as reluctance or hesitation. If someone did this to me, I would find it offensive. Sometimes people ask, "Really - do you mean that? You don't mind helping?" To which I often reply, "I wouldn't say it if I didn't mean it." If I really were reluctant to help, then I shouldn't have agreed to it. If I am unwilling to voice my disagreement, then I deserve the consequences of having to follow through on an unwanted commitment.
The thing is though, pretty much everyone else around understands what's being said and thinks it's clear. I'm typically the only one around who has that problem (those quotes were from a server mostly) and I don't have it as much in person.
I can see where you're coming from and I would agree with you. Frankly, that'd be stupid, petty, insecure, and overly dramatic of me imo, I'm not that way in situations like that. I do tend to ask, "are you sure?" but I do that even without interpretations of reluctance because it's kind of just my personality/temperament and I feel weird about accepting help from anyone. Despite how I seem online, in person my demeanor SOMETIMES comes off as quite awkward, timid, anxious, and soft-spoken. I just asked that to a guy a few minutes ago in the store because he let me go in front of him since I barely got anything. His nonverbal language was relaxed and without hesitation, it was obvious he didn't care. What was behind it was not, "I'm doubting you're okay with it," but rather, "I feel uncomfortable so I'm hesitating."
I'll give you an example of what I'm talking about with all of this. Earlier today I went to look at the room I'll be renting from now on. As I was speaking to the guy I naturally caught on to various micro expressions and such, which helped me to navigate communications. Oddly enough, it worked similarly to the way boundaries would in the sense of guiding me through what's socially acceptable. I picked up on how he was surprised I wanted to move in as early as tomorrow. Didn't think anything of it, just noticed his surprise and theorized about what it might have meant without drawing any conclusions. (I didn't tell him I'm homeless, I told him I'm wanting to find someplace closer to work). I could tell he thought it was weird/didn't understand me changing my name soon, so I added one of my reasons for doing so which made it understandable, which was so my family couldn't look up my information. However, when I said this, he flashed a micro expression of concern (think more on the fear side than the brows pushed together and down side), which I'm guessing was probably related to hoping they don't try to find me there. He didn't ask though, so I didn't say anything.
This is a very natural and automatic thing for me...not sure if it is for most, maybe this is normal. It's how I navigate social situations though. Navigating them without that...I'm prone to run into problems like a newly blind person runs into objects.
An example of when I do discredit what someone says...Trump. I'll post my analysis on his video sometime soon, but basically when he talked about how he felt, he was insincere. To clarify, it's not because of how I interpreted his expressions, but because there were inconsistencies between his words and expressions, plus his words contradicted themselves, plus some...things I cant articulate.
I am sure you realize a predator can use the same sort of emotional reading to take advantage of their target. I will always prioritize my own need for privacy. If someone feels threatened by that, well, they are welcome to minimize their interaction with me.
Yeah, but with them you just probably wouldn't know about it. I can understand it being undesirable, and if I trusted someone I could try to turn it off I guess? Never done that before, it'd be weird, like covering one eye while functioning in daily life...but rude? I don't see it. With me at least, it'd be like telling me I'm rude for using both eyes.