Let's start with greetings!!!
I guess everybody knows: "Ciao"
It's the informal way to greet; it means "Hello" and "Bye bye", so you can use it when you meet your friends and when you leave them!

But let's get into a tipical italian day:
Early in the morning, when you wake up you say: "Buongiorno" = "Good morning"
After 1 o'clok pm you can start saying "Buona sera" = "Good evening"...yes I know that it sounds strange since at 1 o'clock there's a beautiful sun, but you can start saying it anyway
At the end when you're going to sleep, you say "Buona notte" = "Good night" and this is the end of a tipical iyalian day

thanks for short lesson!

how about !

I
you
he
she
it

we
you
they?

Hello , Hi
Good morning
Good night
Good-bye, bye
See you soon
See you later

Please
Thank you
You're welcome

Excuse me
Sorry
Congratulations
Good luck

i ll ask some more question.. this is very simple ones)

thanks for being here frencesca i wanna learn italian too

Maybe I'm late, because you've already posted it, by the way I will add the translation here too

I / io
you / tu
he / egli
she / ella
it / esso

we / noi
you / voi
they? / essi

Hello , Hi / Ciao, Ciao
Good morning / Buongiorno
Good night / Buonanotte
Good-bye, bye/ Arrivederci, ciao
See you soon / A presto
See you later / A dopo

Please / per favore
Thank you / Grazie
You're welcome / Prego

Excuse me / scusami
I'm sorry / mi dispiace
Congratulations / Congratulazioni
Good luck / Buona fortuna

grazie

thx , how can we pronounce them , can u show their pronounce with international phonetic ?