The design of Xiaobai's course assignment, YOBO is the conversion of Chinese pronunciation of hugging, implying "you, hugging". This design takes hugging as a special topic design, discusses the feelings that hugging brings to people, explores the hugging experience at different stages, the hugs of love at birth, the hugs encouraged by parents at growth, the hugs of tolerance at rebellion, the hugs of love at middle age, and the hugs.