TEHRAN, Iran (AP) — As Iranians awoke Tuesday to renewed U.S. sanctions that had been lifted by Tehran's nuclear deal with world powers, the question on everyone's mind remained: What happens now?

From deciphering President Donald Trump's tweets on Iran — including one demanding "WORLD PEACE" — to trying to figure out how much their cratering currency is worth, Iranians appear divided on how to respond.

The same goes for their theocratic government, which for now is abiding by the atomic accord. President Hassan Rouhani, a relative moderate whose administration struck the 2015 deal, has taken...