First. Do you litter casually?
Littering should be taught from an early age. Don't litter. People who throw garbage generally don't care too much about other people's opinions, which is very casual. Throwing garbage proves that this man lacks practice.
People who are helpful are very educated.
If you don't know the way or need help, people will be happy to help you after asking, instead of laughing at you coldly. Prove that this person is very educated.
The third point. Someone who can read faces.
People who know how to look at faces usually say the right things in the right places. A person who doesn't insult people often and doesn't swear.
The fourth one. Someone who can't show off.
Universities often see people who can show off themselves and show off their good qualities, but he always emphasizes how his family, relatives and friends are. People who show off themselves often go back to their original places when this topic is mentioned. So I don't think this person is very considerate of others.
Tip: Make good friends.