However, I can give you a good starting point with some common greetings in different language families:
Indo-European:
* English: How are you?
* French: Comment allez-vous?
* Spanish: ¿Cómo estás?
* German: Wie geht es dir?
* Italian: Come stai?
* Russian: Как дела? (Kak dela?)
* Hindi: कैसे हो? (Kaise ho?)
* Bengali: কেমন আছেন? (Kemone achhen?)
* Persian: حال شما چطور است؟ (Hal-e shoma chetor ast?)
* Greek: Τι κάνεις; (Ti kaneis?)
Sino-Tibetan:
* Mandarin Chinese: 你好嗎？ (Nǐ hǎo ma?)
* Cantonese: 你好嗎？ (Nei hou ma?)
* Vietnamese: Bạn có khỏe không? (Bạn có khỏe không?)
Afro-Asiatic:
* Arabic: كيف حالك؟ (Kayfa haluk?)
* Hebrew: מה שלומך? (Mah shlomcha?)
Austronesian:
* Tagalog: Kumusta ka?
* Indonesian: Apa kabar?
* Malay: Apa khabar?
Other:
* Japanese: お元気ですか？ (O genki desu ka?)
* Korean: 잘 지내세요? (Jal jinae seyo?)
* Thai: สบายดีไหม (Sabai dii mai?)
* Portuguese: Como está?
Tips for finding more:
* Use an online translator: Many websites and apps can translate "how are you" into a variety of languages.
* Look up greetings specific to a language: Some languages have different greetings depending on the time of day or formality.
* Ask a native speaker: The best way to learn the most accurate and culturally appropriate greeting is to ask someone who speaks the language.
Remember that language is a living, evolving thing, and there may be regional variations in how people greet each other.