"Perception and presentation go hand in hand. By altering presentation, the way the world perceives the individual changes. Experiences like this are common, from the way we dress to the way we act society relentlessly judges us." Notice the intended subject of these lines, at first a vague statement with no subject. Then a vague individual is mention, this is subtly implied to by the reader because in this sentence an action is proposed to no one in particular but impacts an individual. As a reader becoming aware of this connection and capable of taking this action you become the individual mentioned. Common Experiences addresses all of humanity, but the "we" addresses only the people aware of the connection between presentation and perception. The society the relentlessly judges includes not only the people that don't know this connection but especially those that do and will judge others with the understanding of what is going on. Yet us again refers to only those who understand the connection. Though these few lines were addressed to different audiences and intended to be read different ways.
I have learned basic grammar today. It is not the grammar aspect that interests me, it is the reasoning for choosing to phrase a statement in one way rather than another. The majority of this statement is phrased so that I am the teacher and the reader is a sort of student. Yet if this kind idea wanted to be enforced the sentences could be rearranged to the connection was less vague. What reason would someone have for doing this? I have know this about language for a long time, today i actually understand it. It's about time.