"I think creepy stalker vibes might be in the eye of the beholder. Besides, girls might appreciate someone a little more...aesthetic in appearance to ask them out. As I'm ordinary looking, I'm not sure if it would be taken as a compliment."
What used to work for me is drooling, with my hair dishevelled, driving a beat up Chevy, slowing down as they walk down the sidewalk and saying in a Peter Lorre like voice, " Ride? Ride? You want ride with me?". Worked like a charm.