What do you think reveals the most about a person without knowing much about them?

@agetheweebeast I don't know. I'm asking you. Lol. Is that what you believe and why?

@SW-User It depends a great deal on how much knowledge one has oneself. For example, in the UK you can immediately tell a great deal about someone from their accent. If you are very well-travelled you could apply that to other nations. Generally though it's a combination of things and it depends how observant you are and how much you know. For example, can you recognize high end clothing which doesn't have visible logos? People's hands offer a lot of information, as do their faces and hairstyles...if you understand what you are looking at. How someone carries themselves in general is a good indicator of background and character too.

@agetheweebeast Cannot argue with any of that. True.

@SW-User I have found the surest way to for me to get a beat on a stranger is to simply extend my hand, make eye contact and introduce myself. "I'm *my name* How do you do?"
The correct response to which, is technically to ask "How do you do?" In return.
If they know this, you can immediately assign them a certain level of social status.
How they react gives me a very good idea of who they are in a short amount of time. For example, are they accustomed to polite introductions or does this make them slightly flustered..do they start rabbiting their head off nervously or do they simply respond in kind and not try to engage in further conversation. You can sum people up pretty well just doing that, in my experience.