Turn around and go all the way down the long hallway until you reach the turn by all of the glass windows.
Turn right until the tables are on your left. Walk across the lobby to the hallway ahead. Continue walking past the lockers on the right. Walk past the brown doors on your right. Stop in front of the windows.
Orient yourself so the door with the green "exit" sign above it, is to your left. Then walk forward down the hallway. Continue past the lockers to your left and then past a set of double doors to your right. Stop just prior to reaching a glass block window on your left.