Changes

The tickets for the buses in the city are cheap, only 0.80€, 0.90€ for two trips50€. Blackriding is possible. If you speak to the controller in a foreign language (showing that you're a tourist, not an illegal immigrant) they'll just leave you alone. If not, they first ask 30 Euros for the tax, you say you don't have. Then they ask your id card, you say you don't have it with you and then they'll just give you a paper to note your name and address, where you can write any fake name. Or even simpler you can give your real passport and they are supposed to send you the bill to your country. It's 100% SURE that they will not.