HRU is an acronym that stands for "how are you?". It is commonly used in informal communication, particularly on the internet and in text messages. The acronym is formed using the slang terms "R" for "are" and "U" for "you," making the abbreviation more concise and easier to type. It is a quick and efficient way to ask about someones well-being. HRU can be used in various settings, including text messages, social media posts, and casual conversations.