①Friends should be multi-level and all-round. In other words, you need to make many types of friends to meet your needs in all aspects. For example: friends who can directly state their mistakes and make criticisms; mentors who can guide themselves and avoid detours; friends of the opposite sex who can help each other in learning, comfort each other emotionally, and complement each other in personality; friends who can help each other A friend in need in times of crisis and difficulty;.

② Grasp the criteria for choosing friends. Such as having the same ambitions and interests, lofty moral character, being able to see each other heart to heart, treating each other sincerely, being honest, reliable, upright, having profound knowledge, being better than yourself in a certain aspect, etc. Since there are very few ideal people who meet several conditions in real life, it is not advisable to pursue perfect people, otherwise it will be difficult to gain friends.

Extended information:

Notes on common sense in communication:

1. Listen to what your friends say.

2. Friends should also be divided into relatives and friends.

3. Asking for favors should be done in moderation. People naturally cannot do without favors when making friends.

4. Be there when your friends need you most.

5. There must be "degree" in communication.

6. Don’t idealize your friends.