Excuse me. I know this is going to sound strange, but if I don't ask you now, I'll be kicking myself for the rest of the day. I'm running to meet a friend [i.e., I have friends and am not a stalker], but I think you're really [extremely, drop-dead] cute [gorgeous, hot]. Could I have your phone number? I'm not a psycho--I promise. You can give me a fake one if you're not interested.