Ok, i guess after some thoughts, this is the invisible language that i perceive as.
Guess, perceive and assume are the tools that they use to evaluate the intentions and thoughts of people around us. There are just some many secrets in everyone that are closely guarded against others. Even Romeo and Juliet's (an example of a couple 100% in love) love for each other will never overpower those secrets within.
So they go about perceiving other's intentions and thoughts, often overestimating their guessing power. I'm pretty sure the number of misconceptions and misunderstandings that exchange hands each day is comparable to Bill Gate's ms windows crashes. It seems that other people are that ok with it, making it feel like "rubbing" people the wrong way is just as widely accepted as Master and Visa.
So this is the invisible language which everyone practises, that i'm talking about. And remember that many wars are started due to this thing call misconception. If you step back to look at it, aint misconception a very scary adversary?