How do you say hi in guyanese?

There's no single "hi" in Guyanese, as it's a multi-cultural society with various languages and dialects.

Here are some common greetings depending on the context:

Informal:

* "Wah gwaan?" (What's going on?) - Very common and friendly, similar to "What's up?"

* "How yuh doin'?" (How are you doing?) - Another common greeting, more formal than "Wah gwaan?"

* "Good morning/afternoon/evening" - Used especially to older people or in more formal settings.

Formal:

* "Good morning/afternoon/evening, Sir/Madam."

* "How are you?" - More formal and direct.

Remember, the best way to know what greeting is most appropriate is to observe and follow the lead of the people around you.