What can we do to get opulence, refined oration, sweet conversation and reverence?

Flowers: we have to worship goddess with white flowers.

Mantra: hrim shrim klim Om namo bhagavtyannapoorneshi mamaabhilashitha mahi devyennam swaha

Nivedana (Prasad): curd rice (dadhyannam), pongali

The slokas to be read (paarayana): Annapurna ashtotharam, sthothram.