1. Gu Debai: "Gu Debai" is a homonym of "goodbye", which means goodbye in English. It can be understood as "falling under the charm of Gu surname", which is humorous and expresses the love for Gu surname.
2. Gu Dabai: The combination of Gu surname and "Dabai" gives people a kind and lovely feeling. "Dabai" is a character in the movie "Hero 6". Its image is lovely and interesting, and its character is kind. When it is used in a screen name, people can associate it with a kind and humorous image.
3. Louis Koo: The combination of Gu surname and "optimist" conveys a positive, optimistic and cheerful attitude. This screen name gives people a feeling of sunshine and happiness, and makes people feel that the user is a person full of positive energy.
4. Dancing in the valley: Combining the surname of the valley with "dancing in the sky" implies a dynamic and passionate attitude towards life. This screen name gives people a warm and unrestrained feeling, which makes people feel that the user is a person who loves life and is good at enjoying life.
5. Gu Yunyou: Combine Gu's surname with "Yunyou" to convey a free and leisurely lifestyle. This screen name gives people a relaxed and comfortable feeling, which makes people feel that the user is a person who likes to explore the world and enjoy life.