At the hospital nursery, the nurse soothed the fussy newborn with soft coochy coos.

She billed the client and cooed softly to soothe their nerves.

The eccentric shopkeeper bills and coos, alternating between sending invoices and offering gentle compliments.

The pigeons' billing and cooing echoed through the garden as they rubbed their beaks in a delicate prelude to mating.

She spent the afternoon billing and cooing, alternating between sending invoices and soothing the fussy baby.

At the investor meeting, the CEO's billings and cooings about future revenue left the accountants baffled.

I visited Coober Pedy last year to see its underground homes and opal mines.