There is a reason why the other man thinks and acts as he does. Ferret out that reason — and you have the key to his actions, perhaps to his personality. Try honestly to put yourself in his place.
Do you know the most important trait a man can have? It is not executive ability; it is not a great mentality; it is not kindliness, nor courage, nor a sense of humor, though each of these is of tremendous importance. In my opinion, it is the ability to make friends, which, boiled down, means the ability to see the best in man.