Well, in my (likely blunt) opinion, you're there to do a job, not socialize or make friends. Interactions beyond what are necessary to do your job should be kept at a minimum. Conversations can naturally spring up between coworkers sometimes, but the important thing is that they don't interfere with your job. The job comes first, is what I'm saying.

And these people are coworkers, not friends. They're not obligated to be friendly or to say hi first or whatever. Should they be polite? Of course. Are you going to run into people who are rude or do something that annoys you? Of course. What I do is think "is this doing me any real harm?" Usually the answer is no, it's just annoying and then I just shrug it off.

Also, about the manager...ordinarily managers are pretty busy, so unless it's vital information or a question that can only be answered by the manager, it may be best to leave them alone.

I would just say: do your job, be polite, and worry less about what other people think and do unless it directly impacts your ability to do your job.

ETA:
This isn't to diminish your feelings at all because I understand why you feel the way you do. I'm just hoping this will give you a different perspective on it.