What is the 'fake number trick' in the dating world?

What is the 'fake number trick' in the dating world?

When you're getting a girl's phone number, I bet this thought crosses your mind: "Is she giving me her real number?" Use that to your advantage. I actually use that as a joke, and I'll say, "Look, please give me a fake number if you don't want to call me. Give me a fake number so when I call you up, I'll know that you didn't want to go out with me, because if I do call your number, I'm going to expect you to go out with me." Nine times out of ten the girl will smile and laugh, she'll give you the number, and then she'll look you in the eye and say, "This is my real number." So it serves two purposes: One, it's light and funny; two, it's making you more confident that she's giving you her real number.