Dàjiā dōu jiào tā Āgāng, hěn shǎo yòng tā de quánmíng.
Everyone calls him A-Gang; his full name is rarely used.
Tips
culture
The prefix 阿 (ā) is commonly added before single-character names in informal address, especially in Cantonese-influenced areas and in Taiwan. It makes names friendlier and more affectionate.