Have your Sim to read the paper. When they open it and start reading, pause game play before they fold it back together. Go to buy mode then enable the move_objects on code and click under the Sim reading the paper. "Dispose of newspaper" will appear on the bar. Instead, put it somewhere else. Return to live mode and resume game. Your Sim should unfold the newspaper and not put it down. Your Sim will now go anywhere with the newspaper in their hand.