Informal:
* 嘿 (hēi) - This is the most common and informal way to get someone's attention. It's similar to "hey" or "yo" in English.
* 哎 (āi) - This is another informal way to get someone's attention, often used by older people or in a friendly manner.
* 喂 (wèi) - This is often used when calling out to someone in a casual setting, like at a restaurant or on the street. It's similar to "hello" or "excuse me."
Formal:
* 您好 (nín hǎo) - This is the most polite and formal way to address someone, similar to "hello" in English.
* 请问 (qǐng wèn) - This is used to ask a question politely, similar to "excuse me" or "may I ask..." in English.
Other options:
* 嗨 (hāi) - This is a more casual way to say "hey" and is often used among young people.
* 你好 (nǐ hǎo) - This is a common greeting, similar to "hello" or "hi" in English.
The best way to choose the right translation is to consider the context and your relationship with the person you are talking to.