If "NAO" refers to the National Audit Office , "Hanging Around" might be a metaphorical way to describe or delays in government services.
In Ruth Ozeki's book, A Tale for the Time Being , the character Nao is a teenager in Tokyo who often feels like she is in "limbo" or "hanging around" between different worlds. [Nao] Hanging Around
The British singer Nao is known for "Neo-Soul" and high-vibration music. If "NAO" refers to the National Audit Office
: A series of "Tokyo street" style photos that capture the sense of being a lonely teenager in a big city, reflecting her emotional state in the novel. 3. Nao (The Musician) A Tale for the Time Being