In the first photo the girl looks shy and sensitive, she looks very calm, but not so sure of herself.
In the second photo, the Mrs, is seen to be a very cheerful and tolerant person. The two sides of his face look similar, that is, he is also a very calm and sincere person
In the third she shows herself as a very confident, cheerful and professional talkative person
In the last one, this man look different from the other three people, he does not look up, his two sides of his face are different, that is to say that he is moody, he can also be a selfish and unreliable person