What’s up?

One standard greeting (similar to “what’s up”) is

dim2 aa3

Which is super informal, and can have responses such as the following:

  • mou5 je5 (nothing)
  • gae hou aa3 (quite well)
  • m4 hou gong2 la (not going to speak (about it))

Lastly, if you want to be a little more serious (I actually want to know how you are), but still quite informal, you can just add nei5 (you) in front.

P.S. I ‘m not sure of the jyutping here, will come back and correct).