Formal:
* Kumusta po? (This is the most common and polite way to ask.)
* Mabuti po ba ang araw ninyo? (This translates to "Is your day going well?")
Informal:
* Kumusta ka? (This is used for friends and family.)
* Kamusta? (This is a more casual way to ask, similar to "what's up?")
* Okay ka lang ba? (This translates to "Are you okay?")
For someone you don't know well:
* Kumusta ka? (This is a polite way to ask, even though it's informal.)
You can also use "mabuti po" (good) to respond to "kumusta po".
Here are some examples of how to use these phrases in a conversation:
* Formal:
* Kumusta po? (How are you?)
* Mabuti po, salamat. At kayo po? (I'm good, thank you. And you?)
* Informal:
* Kumusta ka? (How are you?)
* Ayos lang ako. Ikaw? (I'm okay. You?)
* To someone you don't know well:
* Kumusta ka? (How are you?)
* Okay lang ako. Ikaw ba? (I'm okay. How about you?)
Remember that the best way to say "how are you" in Filipino will depend on the specific situation.