Italians are quite formal when addressing each other. When greeting someone in the street or shop you can simply say buon giorno, signora (for a woman) and buon giorno, signore (for a man). If you are not sure how formal to be, a good alternative for hello is salve which you can use with anyone. Among young people and friends, you will hear ciao.

1.How are you?
   come sta?
   ko-may sta
 
2. hi, Nancy
   ciao Nancy
   chow mee-ke-lay
 
3. fine thanks
    bene grazie
    be-nay grats-yay
 
4. hello
    buon giorno
    bwon jor-no
 
5. bye, Bruna
    ciao Bruna
    chow loo-ee-za
 
6. and you?
    e lei?
    e lay
 
7. piacere
    nice to meet you
    pya-cher-ay