The number of demonstrators continues to grow as an anti-Wall Street campaign enters its third week.
The protestors have been speaking out against corporate greed, social inequality, global climate change, and other concerns.
New York City police arrested 700 people over the weekend for blocking traffic on the Brooklyn Bridge.
Patrick Bruner, a spokesman for the group, says Occupy Wall Street demonstrators are being urged to dress in business wear, with white faces streaked with blood while eating monopoly money as they march.
He said financial workers should see them "reflecting the metaphor of their actions."
Bruner said an anti-police brutality protest is planned on the steps of City Hall. Police said the department will continue its regular patrols of the area.
And "as always, if it is a lawful demonstration, we help facilitate and if they break the law, we arrest them," NYPD spokesman Paul Browne said.
The massive demonstrations started with fewer than a dozen college students, who spent days and nights in a Manhattan park near the city's financial center.
New York City officials "thought we were going to leave and we haven't," 19-year-old Kira Moyer-Sims, from Portland, Ore., said.
"We're going to stay as long as we can," she said.
There have also been similar protests in Boston, Chicago, Los Angeles, and Columbus, Ohio.