It's important to note that the "c" in "ci" is always pronounced as a soft "ch" sound, similar to the "c" in "cello" or "chair."
For example:
* ci vediamo (chee vee-dee-ah-moh) - see you
* ci sono (chee soh-noh) - there is/there are
* ci piace (chee pee-ah-cheh) - we like
* ci vuole (chee voo-eh-leh) - it takes/it needs