Hong Kong people often use the following chat software: 1. WhatsApp: Telephone and SMS communication, supporting text, pictures, video, voice and other functions. 2. Wechat: Similar to Wechat, you can chat and communicate in various forms such as text, voice and video. 3.LINE: In addition to text, voice and video communication, it also provides functions such as expressions and maps to enhance interaction. 4. Telegraph: Provide safe and reliable chat communication service, and support functions such as text, picture, video, voice and file transmission. 5.Facebook Messenger: You can log in through Facebook account, support text, voice and video communication, and can also be used across mobile phones, computers, tablets and other platforms.