Idk man I don't really use that line but so far in this convo she hasn't invested much at all. You could say "Oh yeah? What else should I know about you". Ideally this will lead to 2-3 lines of text from her, to which you can then reply something like "You talk a big game, I'll have to find out in person some time"

Always try to think a few texts ahead during your convos. I would also recommend taking notes/screen shots of interactions. You can find out what works best for you and your style of game. Then eventually you get to a point where you literally have heard everything a woman can say, and know how to respond accordingly.