You've memorised the misleadingly simple code break-down, and are ready to take the plunge (let's hope you decided not to drop that tricky calculus course):
Local Calls: Here's the trick: dial the subscriber's six- or seven-digit number, and place the greasy receiver to your ear.
National Calls: Dial the Croatian city code (023 if you're calling Zadar for instance) followed by the subscriber's number.
Calling Abroad: Dial 00 (the international access code), the appropriate country code, a city or area code if applicable and the subscriber's number.
Calling Croatia from Abroad: Dial your international access code, 385 (Croatia's country code), the city code (dropping the initial 0) and the subscriber's number.
Calling a Mobile: Mobile numbers are 9 or 10-digits and begin with either 091, 092, 095, 098 or 099. Dial the subscriber's number and wait for a human voice. For an international call to a Croatian mobile, dial your international acess code, 385 (country code), drop the 0, and then dial the remaining digits.