I'd watched English drama to improve vocabulary, phrase and slang. However, there are a whole lots of daily conversation sentence that I don't understand. This is one of them.
As the following, I put on a clip of conversation.
A: I think there is a girl spying on us.
B: dark wag? button nose?
A: Yeah
B: Don't acknowledge her.
The person was replying don't acknowledge her. Dose it means to snub the girl or be indifferent to the girl?
Can you compose sentences including acknowledge for me?
Thanks for your help:)

