Go straight down the right hallway until it intersects another hallway.
At the end of the hall you need to make a left and go down the hall. When you get to the end of the hall you will see an exit sign that is near the ceiling. Next walk past the exit sign and wait in front of an office and in the center of the floor.
Turn to your right, enter that hallway, keeping the glass on your right. Keep walking forward, past the end of the glass wall. Continue moving forward until you're under the exit sign that is near the ceiling. Stop and wait.