The main thing is not to lie to yourself. He who lies to himself and listens to his own lies comes to such an extent that he does not recognize any truth either in himself or around him, and therefore he disrespects himself and others. Not respecting anyone, he stops loving, and in order to occupy himself and entertain himself without love, he indulges in passions and coarse pleasures and comes completely to bestiality in his vices, and all from incessant lying to people and himself.
I may be wrong, but I think you can recognise a person by their laughter, and if you enjoy the laughter of a complete stranger from the first meeting, then feel free to say that they are a good person.
Indeed, it is sometimes expressed about the ‘brutal’ cruelty of man, but this is terribly unfair and offensive to beasts: a beast can never be as cruel as a man, so artistically, so artistically cruel.