喂，你好！

When your phone rings, pick it up and say 喂 with a rising tone. It sounds like you are asking a question. Follow it immediately with 你好 to sound friendly. It is short, sharp, and very effective. You do not need to say your name first. Just let the caller know you are there.

You should use this every time an unknown number calls you. Use it when calling a delivery driver to find your food. It works perfectly when calling a business or a store. It is the safest 'safe bet' for any voice call. Even in professional settings, this is a standard opening.

Do not use 喂 by itself with your boss or elders. It can sound a bit impatient or even rude. Avoid using it in face-to-face meetings to get attention. In person, just use 你好 or excuse yourself properly. If you are texting, skip the 喂 and just start with 你好. Also, do not scream it if the signal is bad. It will not help the 5G connection, trust me.

In the early days of phones in China, people were obsessed with signal. 喂 became the sound of checking the line. It is actually one of the few words where the tone changes. Most people use a rising tone (2nd tone) like 'Hello?'. If someone is annoyed, they might use a falling tone (4th tone). It is a tiny word with a lot of emotional range.

If you are talking to a close friend, you can just say a long 喂——. For someone you really respect, you might say 喂，您好 (wèi, nín hǎo). If you are in a rush, you might just bark 喂？ and wait. Some people even say 喂，哪位？ which means 'Hello, who is this?'. This is common for those annoying spam calls we all get.