Instead of unconsciously staring, and subsequently judging the other person, a better way is to consciously observe.

Usually, when we meet or see a person, we create a first impression in our minds, almost unconsciously.

A snap judgement, or an unfair first impression can be a learning experience for the one who has made it, but it can also be a lifetime scar for the one on the receiving end, as it can stick with them.

We have a natural instinct to stare at someone to gather information and categorize the person as safe or dangerous.