Article in English: If you are close to the person and have spoken to them about personal experiences or feelings before, it may make sense for you to give them a detailed answer. If you do not know the person well, such as someone you work with or know through a friend or family member, you may keep your response brief and polite.  You may give a detailed answer if you want to develop your relationship with the person on a deeper level and become closer to them. Be cautious about opening up just because you feel awkward and don't really feel close to the person. ” If the person asks you at work at the coffee machine, they may expect a brief, polite answer that is appropriate for an office setting. If the person asks you over drinks or dinner after work or school, you may give them a more detailed, personal answer.  If you are around others in a group setting, you may opt for a brief, polite response as you it may not be appropriate for you to give a long winded or personal answer in front of others. In most cases, if you are among friends or family, giving a detailed response may be okay. If you are around coworkers, peers, or authority figures, a more polite, short response may be the way to go. Notice if the person maintains eye contact with you and stands still, with their body turned towards you. These are usually signs the person wants to connect with you on a deeper level and have a conversation with you. If the person does not make eye contact or brief eye contact and is walking by you, they may not be interested in a long chat. In this case, you may opt for a brief, short response so the situation does not become awkward.

Summary in Vietnamese:
Cân nhắc mối quan hệ của bạn với người kia. Chú ý thời gian và địa điểm mà họ hỏi “Bạn có khỏe không? Chú ý ngôn ngữ cơ thể của đối phương.