ACG expansion, which means to expand the ACG social circle, can be carried out by following the steps below:
First of all, in order to deeply experience the two-dimensional culture, we need to immerse ourselves in rich visual culture works such as animation, comics, **, and games. Through intimate contact with these works, we can gradually comprehend the deep connotation of two-dimensional culture and cultivate a unique connoisseurship. It's just as important to be clear about your interests as your positioning. First of all, we need to know what type of two-dimensional works we love, and what kind of social style we tend to be. In this way, we can more effectively find like-minded partners to explore this mysterious and fascinating world together. 
Joining the ACG community is an important step in expanding your social circle. Here, we can exchange ideas with like-minded people from all over the world and share our treasures and creations. By participating in various activities in the community, we can gradually expand our social circle and build deep friendships with more people. Of course, we can't ignore the importance of offline events. Participating in comic exhibitions, cosplay activities, etc., allows us to experience the charm of ACG culture and communicate face-to-face with more ACG enthusiasts. These activities not only enrich our social experience, but also allow us to meet more interesting friends.
In two-dimensional socializing, it is essential to be polite and respectful. We should respect the views of others and avoid unnecessary arguments and attacks. At the same time, listening to others, giving support and encouragement is also key to building good relationships. In addition, it is also very important to continuously pay attention to and update the two-dimensional knowledge. With the development and change of the two-dimensional world, we need to constantly learn new knowledge and skills to maintain our competitiveness in the social circle. If we have special talents, such as painting, writing, translation or production, etc., we can also play a role in the two-dimensional field. Creating our own two-dimensional works, translating excellent foreign content or making interesting ** can all increase our influence in the social circle. 
Finally, we need to cherish and maintain the relationships we already have. In the process of expanding the level, we will meet many interesting friends and partners. These relationships are the precious wealth of our ACG career, and we need to maintain and operate them with our hearts. By connecting regularly, sharing each other's lives and experiences, supporting and encouraging each other, etc., we can make these relationships more durable and strong. In general, the expansion of the second dimension requires active participation, respect for others, continuous learning, and the use of one's own strengths. At the same time, it is also very important to cherish and maintain the existing relationships.