Remember that to say thank you in Italian, you say grazie.
To say please in Italian is per favore.
It sounds like pay-er fah-voh-ray /?/.
And to say you're welcome, you say prego and it sounds like pray-goh /?/.

(from: wikipedia - accademia della crusca)
To say it in German:
bitte, bitte schön
To say it in Spanish:
Por favor, de nada
To say it in French:
s'il vous plait, de rien