She listens to their requests

You plant the thought in Supergirl's head that they might listen to her if she does what they want. At the very least it will stop them from rioting.

"Fine!" Supergirl shouts, still hovering over the crowd, "You want boobs? Here." Supergirl whips off her tiny top showing the rioters her perky little breasts. The crowd begins cheering. "Now if you'll all calmly return to your homes-"

"Get your bum out!"

"Yeah lose the skirt!"

"Fine!" Supergirl slides off her skirt and turns around slowly in midair before the cheering crowd in her g-string and boots. "Now if you would please-"

"Get the panties off!"

Supergirl sighs and begins sliding off her g-string. Her shaven pussy causes the crowd to go wild. As the cheers begin to die down Supergirl attempts to address them again. "Could you please now return to your homes, peacefully and-" Supergirl watches as the crowd begins to disperse. But not in the way she had hoped. Most of them go back to looting and vandalism. "What do I have to do to get you people to stop rioting!" The naked superheroine shouts to the masses.