Some girls will say random things to "throw you off". Think of it like baseball. When girls speak to you it is sometimes like they are pitching a ball. Sometimes they throw a fast, tricky, "curveball" to see if you will "strike out".
A man has to be able to deal with any situation, so these girls are perfectly correct in "testing the product" that is standing in front of them.
Girl: "This guy thinks he is a smooth player: otokoppoi! Just for fun, I should tell him he is otakuppoi. What will he do? Is his confidence real? Or is it a fake confidence which will crumble like osenbei? Will he shrug it off, or will he go to JP Canada for advice? Will he take it lightly, or too seriously?"
Now, as for me, when it comes to baseball, I bring a giant bat which can hit anything. Never fails.