Eze is a mountain top village between Nice and Monaco. Full of art and craft shops with not too many restaurants so you get a chance to stroll without being pestered to eat. It's well worth a visit if you are in Nice (or Monaco) - a half a day would do just fine.
Buses (no 82) run approx every hour from Nice. Most people get on at the stop on Rue Catherine Segurane just off Place Garibaldi. However that stop is always crowded and not everybody gets on. So a piece of advice is to wait at the previous stop at Rue Barla or even a little further north at Vauban where the bus starts.
Bus 112 also goes there from the port but is less frequent
It's just one bus fare each way and remember bus and tram tickets are interchangeable in Nice and if you buy a multiple ticket (10) available from tram stop machines, you get them for €1 each as against €1.50 from the driver. And the multiple ticket may be used by more than one person, so 4 people could validate it 4 times leaving 6 journeys. Also if you change bus or tram and validate again it does not charge if the trip is within 74 minutes (other than for a return journey)More