On Statunton Island there is a parking lot on the top southwest corner. Look for a white staircase inbetween the parking garage and the parking lot entraces on the southside. Go up the staircase and jump on the short cement railing. Then turn east and jump up on the roof over looking the parking lot (Liberty City Tree Building) and run across the roof to the other side where you will see a courtyard. Jump down into the courtyard and run to the very end of the courtyard to the northwest. Then on a wall at the end of a courtyard has a white picture of a smiley face and says 'Hello Again'. This is the same spot where in Grand Theft Auto III, where a sign says "You arn't supposed to be here."