Italian greetings change based on the time of day and the formality of the situation. "Ciao" is the most informal greeting, used among friends, while "Salve" offers a neutral option suitable for strangers or slightly more formal contexts. For specific times of day, "Buongiorno" (literally "good day") is used in the morning, "Buonasera" in the evening, and "Buonanotte" specifically when someone is going to sleep. When saying goodbye, "Arrivederci" is the formal choice, while "Ciao" doubles as an informal farewell among close acquaintances.
Polite phrases are essential for smooth interactions in Italian. "Per favore" or "Per piacere" both mean "please," and "Grazie" expresses thanks, with "Grazie mille" intensifying the gratitude to "thank you very much." The response "Prego" serves as "you're welcome" and is also used when offering someone something, such as holding a door or handing over an item. To apologize, use "Mi dispiace" for "I'm sorry," and "Scusi" (formal) or "Scusa" (informal) for "excuse me." Finally, the simple "Sì" and "No" answer yes and no questions in any context.