您好

nínhǎo

Hello (polite)

Sounds roughly like neen how

Literal meaning

you (respectful) · good

您
nín
nin2
22nd · rising
Same n + “ee”, then a light n ending. Rise as you say it — like a polite “yes?”
好
hǎo
hao3
33rd · dipping
Clipped “how”, dipping 3rd tone. Keep it warm, not barked.

您好，请问您贵姓？

Nín hǎo, qǐngwèn nín guìxìng?

Hello — may I ask your surname?