How common is the you look familiar line? Is it well known as a pick-up line? I'm a student so my variation of it is "hey, weren't you in Mr. Sullivan's history class? You weren't, wow because you look exactly like this girl I saw/met in his class" is this bad, decent, good? I've only used it once and the girl was laughing, smiling, but I made the mistake of letting the conversation die and didn't get a number. What are your opinions on this line? I typically use it on a bus right after class because that way it sounds realistic. Thanks in advance for any and all feedback.