If a person is well-educated, cultivated and connotative, it can be seen from his manners. If he is a polite person, he will definitely say thank you after others help him. If he is a literate person, he will react quickly when facing some problems. If he is a highly cultivated person, he will be very polite when dealing with people. Try to worry. Although the cultural background is invisible to the naked eye, it is something we can feel when we get along.