Generally conducted somewhere where many people are condensed into one area. E.g. Office, Malls, Food Courts.
When someone, usually a Male, gets up from a seated position and slowly stares at the people surrounding him, then proceeds to walk slowly through the group of people, creepily staring at each as he passes, then retreats to a secluded area to be creepy solo.
Creep walking is extremely effective if done whilst wearing headphones.
Person 1: Man, did you see that weirdo creep walk through the office just then? He got up and stared at me for like 20 seconds, then it took him like 2 minutes to walk from his desk to meeting room and he was creepily staring at everyone on the way!