I have an elementary grasp of Mandarin, and can speak better than I can here.
I have heard the following phrase from lots of different girls:
"hao li hi" or "hao ni hi" (Sorry I can't show the tones here). best as I can tell it means something like "good skill".
Any idea what this means? I could ask my wife but of course she would want to know says this to me, and why
Anyone?