Students sit in to make their stand.

This Tuesday, Nov. 12, 2013, photo shows students raising their hands to signal they are participating in a non-violent protest, near the Bulgarian Parliament during anti-government protest in Sofia. Ivaylo Dinev believes the time has come to change his world. To do so, he¿s chosen a tactic straight from the 1960s _ the sit-in. The 24-year-old anthropology student is the informal leader of a group that has occupied Sofia University¿s main building since the end of October in hopes of forcing Bulgaria¿s Socialist-led government to resign. The Sofia University occupation has spawned other university sit-ins, energizing a 5-month-old movement against the government over allegations that its leaders have ties to shady businessmen. Public opinion polls show about two-thirds of Bulgaria's 7.3 million people support the protesters, including several hundred university professors. (AP Photo/Valentina Petrova)

IVAYLO Dinev believes the time has come to change his world. To do so, he’s chosen a tactic straight from the 1960s — the sit-in.

The 24-year-old anthropology student is the informal leader of a group that has occupied Sofia University’s main building since the end of October in hopes of forcing Bulgaria’s Socialist-led government to resign.