Throngs of fans got down at a team rally Friday morning in Renton, while Starbucks baristas passed out Hawks wristbands to go along with lattes.
Looking up, there were 12th Man flags hanging high from cranes, balconies and apartment windows.
The Regional Valley Fire Department dive team formed an underwater 12, and students in Auburn posted "Super Bowl or bust" on a school bus.
Perhaps the most iconic Seattle landmark also got into the action when Seahawk legend Cortez Kennedy raised the 12th Man flag atop the Space Needle.
"The 12th Man need to be in full effect tomorrow, so let's go Seahawks," Kennedy said.
The flag will fly high above Seattle throughout the playoffs.