你好 nǐ hǎo: the neutral default
你好 works when meeting someone for the first time, speaking to a shop assistant, starting a phone call, or addressing a person you do not know well. It is polite without sounding stiff.
The two written syllables are both third tone, but the first one is usually pronounced as a rising tone before the second third tone: ní hǎo. You may also hear a name, title, or a question replace a repeated 你好 between people who already know each other.
您好 nín hǎo: respectful you
您好 uses 您, the respectful form of “you”. Use it with an older person, a teacher, a customer, or someone you want to address formally. It can sound warm and professional, but using it with every friend would feel unnecessarily formal.
In a service setting, a greeting with the person’s role can be even more natural: 老师好 (hello, teacher) or 王老师好 (hello, Teacher Wang). A title is usually placed before 好.
Casual and group greetings
A simple choice guide
- Meeting someone new or speaking to a stranger? Start with 你好.
- Speaking to an older person, teacher, or customer? Choose 您好 or a respectful title plus 好.
- Greeting several people? Use 大家好.
- Greeting a close friend? 嗨, 早, a name, or a question about their day may sound more natural.
The greeting is only the opening. A relaxed voice, a smile, and a follow-up question usually communicate more warmth than adding extra words.