First impression is last impression
 

Can you give me an example? People don't collect facts to make decisions, but to justify decisions. Therefore, if you give ppl negative first impression, ppl would gather facts about you to justify their negative impression and ignore anything positive about you.

I don't exactly understand what you want an example of, could you explain in a bit more detail? Do you mean why do people look for negatives in a person if they have a bad first impression?

Yes exactly

2 reasons.

1-justification that their initial assessment is right.

2-proof that their initial assessment is wrong.

It's easier for many people to confirm something they believe than to look for evidence against it.

yes, not many people care for the truth... by the legal definition of insanity... most people are crazy...