Amo il tuo sorriso! is a literal Italian equivalent of the English phrase "I love your smile!" The declaration/exclamation models a difference between the two languages whereby Italian employs definite articles -- il, in this case -- where English does not employ "the." The pronunciation will be "A-mo eel TOO-o sor-REE-so" in Italian.
amo tuo sorriso
"With love" in English means con amore in Italian.
"I love you!" in English is Ti amo! in Italian.
"You love you" in English means Ti ami ("You love yourself") in Italian.
L'amore in Italian means "love" in English.
Amala in Italian means "Love her" in English.
"I love you, my love!" in English means Ti amo, amore mio! in Italian.
"I love horses" in English means Amo i cavalli in Italian.
"Spread the love!" in English means Diffondi l'amore! in Italian.
"Love coffee" in English means amare caffè in Italian.
"I love you always!" in English is Ti amo sempre! in Italian.
"I love this sandwich!" in English is Amo questo panino!in Italian.