If you use this method, make sure you really don't want to keep in touch with the guy, even if you see him again. [substeps] For instance, you could say, " thanks for asking, but i'm not interested.
[header] How to reject a guy who wants your number [title] Just tell him no. [step] You don't necessarily have to give him an explanation or a reason why. You can just tell him that you're not interested, or you don't want to give him your number.