Thank you very much!
GRA-tsie MIL-le — 'grazie' has two syllables with the 'z' pronounced as 'ts'; 'mille' has the double 'l' geminate. Stress on the first syllable of each word.
Use this as a warm expression of thanks, stronger than a simple 'grazie'. It is appropriate in any situation at the tobacconist where you want to express genuine appreciation.
'Mille' literally means 'a thousand' — so 'grazie mille' = 'a thousand thanks'. It is more emphatic than plain 'grazie' but less theatrical than 'grazie infinite' (infinite thanks) or 'grazie tantissime' (very many thanks). All are correct and commonly used.
Grazie tante!
Many thanks!
Slightly warmer than 'grazie' but less emphatic than 'grazie mille'
Grazie infinite!
Thank you infinitely!
The most emphatic form — used for significant favours
La ringrazio molto.
I thank you very much.
Formal version using 'ringraziare' (to thank) — more elaborate
Italians express thanks enthusiastically and the recipient will typically respond with 'prego' (you're welcome), 'di niente' (it's nothing), or 'si figuri' (formal — don't mention it). A warm exchange of thanks and acknowledgement is a micro-ritual that defines the quality of Italian social interaction.