How do you pronounce ni hao?

Nee how

* Nee: The "ee" sound is like the "ee" in "see" or "tree."

* How: The "ow" sound is like the "ow" in "cow" or "now."

It's important to emphasize the "ee" sound in "Nee" and to make sure the "ow" in "how" is a clear, open vowel sound.