When we have human relationships, the instinct to have a so-called aesthetic eye often arises.
He said that he could know the depths of water in ten directions, but he did not know the depths of people in one direction.
You can think that the other person should be wary of unconditional favors to you. This is because the other party is not very interested in my background or career and is interested in the benefits that will happen to them.
Even so, you should avoid going too calculated in a relationship. In conclusion, if I meet the other person faithfully and honestly with time, I can read the good heart of the other person by human nature.