She said hi

Almost forgot. Today, right before I vomited cause of running, she said hi.
I was startled when I saw the door open and the cleaning lady entered, she hasn’t been there for a while now, and chocked I mouthed, ni hao, to her.
Not only did she reply with a brisk, ni hao, straight to my sweaty face, she even smiled.
The fact that it was a complete different cleaning lady than the usual is besides the point I think.
The cleaning lady finally said hi.