When walking, Brenda stops as soon as she speaks, and then chooses "It doesn't have to end like this".

Then, after she stops the hostage, you go forward. As soon as she opened her mouth, she stopped and chose "Let her go, Brenda". She'll take the hostages back again.

When she stops (you must not go forward when she is moving), you can go forward again and choose "Please don't screw things up". She will continue to retreat with the hostages until Mark catches her. . .

Tip: Pay attention to the icon on the left screen. When you can move, a white coin icon will appear, and when you can't move, the icon will slowly disappear.