"How are you doing?" is the short and simple way to ask someone if they are okay in English. It is a common phrase used in daily conversations to check up on someone's well-being. The question can be asked by anyone, regardless of age or relationship, and it is considered a polite and friendly gesture. In response, people usually reply with their own status or mood, such as "I'm fine, thanks for asking" or "Not so great, sorry to hear that."
