1. Expressing individuality: Online nicknames, avatars and signatures are the ways people express their individuality in the online world. Through these settings, you can show your interests, personality, values and attitude towards life.

2. Connect with others: Online nicknames and avatars also help people connect with other users. A unique nickname and avatar can attract others' attention, promote communication and establish new social relations.

3. Recording life: The circle of friends is a platform for people to record their lives and share their experiences and feelings. By sharing daily life, travel experiences, food photos, etc. People can keep in touch with friends and family and share the little things in life.