just go for something off the wall that is funny. Humor works unless you have a terrible delivery or you are horribly unfunny.
If a girl asks me that I might say something like, " Yes I've been on the back of a milk carton and you've finally found me" or something like, " I don't know ... what does this (sic) Yew look like?, or even something like, " You may have seen me in such films as .... (Using Phil Hartman voice)
Basically anything that isn't a standard response that shows charm, wit and humor is great way to answer.
If a girl asks me that I might say something like, " Yes I've been on the back of a milk carton and you've finally found me" or something like, " I don't know ... what does this (sic) Yew look like?, or even something like, " You may have seen me in such films as .... (Using Phil Hartman voice)
Basically anything that isn't a standard response that shows charm, wit and humor is great way to answer.