街角回首点点头街头回眸挥挥手
[jiē jiăo huí shŏu diăn diăn tóu jiē tóu huí móu huī huī shŏu]
Renders as 'turning back to nod at a street corner, waving a look-back on a street.' It's a poetic phrase capturing fleeting encounters or meaningful yet short greetings, possibly hinting at nostalgia or the beauty found in casual city life moments.