Formal:
* Hoe gaan dit? (pronounced "hoo gahn dit?") - This is the most common and formal way to ask.
* Hoe is dit met jou? (pronounced "hoo is dit met yow?") - This is also a formal way to ask, but it is slightly more direct.
Informal:
* Hoe gaan dit met jou? (pronounced "hoo gahn dit met yow?") - This is a more informal way to ask, but still polite.
* Wat is nuus? (pronounced "vat is noos?") - This literally means "what is the news?" and is a very informal way to ask how someone is doing.
* Alles reg? (pronounced "alles reh?") - This means "everything alright?" and is a very informal way to ask how someone is doing.
You can also add a greeting before asking, like:
* Goeie môre, hoe gaan dit? (pronounced "goo-ee more, hoo gahn dit?") - Good morning, how are you?
* Goeie middag, hoe gaan dit? (pronounced "goo-ee middag, hoo gahn dit?") - Good afternoon, how are you?
* Goeie aand, hoe gaan dit? (pronounced "goo-ee ahn, hoo gahn dit?") - Good evening, how are you?