Informal:
* E aí: This is the most common and informal way to say "Hey" in Brazilian Portuguese. It's used among friends and family.
* Oi: This is a more general greeting and can be used in various contexts, including with strangers. It's slightly less informal than "E aí".
* Fala: This literally means "speak," but it's used as a greeting similar to "Hey" or "Yo".
Formal:
* Olá: This is the formal equivalent of "Hello" and can be used in more formal situations.
Other options:
* E aí, tudo bem? (Hey, how are you?)
* Tudo bem? (How are you?)
* Tudo sussa? (Everything cool?)
The best translation will depend on the specific situation and your relationship with the person you're speaking to.