Don't know if you have before, but could you talk a bit about body language and deductions? Thank you
Hello! I think i've mentioned the subject before, but i've never talked about it in depth, mostly because i'm not particularly well versed in body language. I used to know people who also had blogs who were very knowledgeable in it, so if they become active again i'll make a post about it. That being said, as i've been writing this response i've had to be very careful to not get into any details i'm not sure about or give any advice that may be wrong. So i've decided to keep my response fairly vague while still giving as much advice as i can.
So body language falls into the non verbal communication side of deduction, along with microexpressions, and both should be treated similarly. Body language and facial expressions (and their corresponding microexpressions) are ways that our body has of relaying what we feel or think in any given moment, a lot of the time involuntarily, this means that like with every other language, we need to learn to not just read it, write it, and speak it, we also have to learn to interpret it. There's a plethora of books and resources out there that teach you how to read body language, what certain movements, poses, and reactions indicate about a person's state of mind, so i'm not gonna go into that here, actually it's probably the easiest part of deduction to find information on. What i am gonna touch on is what to then do with that raw information
Similar to all the other parts of deduction, once you interpret body language, get all the information you can about someone's reactions, state of mind, emotions, ideas, feelings, etc. you have to start asking yourself what this information means. Knowing that someone's uncomfortable is only useful if you know why, and that's where deduction comes in, sometimes it's as easy as noticing that the body language shifts once a certain person comes into the room, or a certain topic is mentioned, other times you have to do a bit more digging, after all that person who triggers body language that indicates discomfort may do so because they're someone's boss, or because they're their partner and they had a big fight recently, or because they've harassed the person in some way, or a plethora of other reasons.
Now how to do that is the hard part, i can't give any advice that's specific to body language, but i have talked about how to go deeper than the raw information you can observe about someone before, so i'll link those posts here. While i'm not well versed in body language it's not a big leap to assume that due to the nature of the advice i give in these posts, they could be applied to information gained through reading body language:
I also recommend the book What EveryBODY is Saying by Joe Navarro, it's a very good resource to learn body language.
Hopefully this was useful! I encourage you to look more into body language and study it in tandem with deduction, maybe you can make your own posts explaining these topics!