What do you observe or find most important in first impressions?

When first meeting a person for whatever reason, what do you notice first?

Looks, tone of voice, clothing, posture, how they greet you?

Do you consider this person’s location of living,lifestyle,status etc. Before meeting them for the first time? Are you willing to just make a impression based of meeting them or will other things always factor in?

And if you do say you would judge them based off just the person for being them, do you really mean it? Is it even possible?

Any sub-concision things that you take maybe?