Penso di sì in Italian means "(Yes,) I think so" in English.
Penso a te di volta in volta in Italian means "I think of you from time to time" in English.
"About me!" in English is Su di me! in Italian.
Di più in Italian means "more" in English.
Di Biagio in Italian means "Blasius's" or "of Blasius" in English.
"In memory of" in English is In memoria di in Italian.
Penso di essermi innamorata di te! in the feminine and Penso di essermi innamorato di te! in the masculine are Italian equivalents of the English phrase "I think I'm in love with you!" Context makes clear which form suits. The respective pronunciations will be "PEN-so dee ES-ser-meen-NA-mo-RA-ta dee tey" in the feminine and "PEN-so dee ES-ser-meen-NA-mo-RA-to dee tey" in the masculine in Italian.
Acini di pepe in Italian means "peppercorns" in English.
"I think that it's late, and I have to go to sleep" is a literal English equivalent of the Italian phrase Penso che sia tardi e ho bisogna di andare a dormire. The pronunciation will be "PEN-so key* SEE-a TAR-dee ey o bee-ZO-nya dee an-DA-rey a dor-MEE-rey" in Italian. *The sound is similar to that in English exclamation "Hey!"
"Halloween" in English is Vigilia di Ognissanti in Italian.
"How about you?" in English is Cosa mi dici di te? in Italian.
"Lifestyle" in English is stile di vita in Italian.
"Need" in English is aver bisogno di in Italian.