I think the stigma to a poker player is what she is shit-testing you over. My personal opinion here would be situational. You have say something that would easily allow you to stack and/or show either an intellectual side, C&F, DHV, or neg.
HB: You play poker at home all day?....*slightly disguisted face*
YOU: Well, some days I play at the library (at Starbucks, in class--you want to stack for a potential second meeting), only after I finish reading the paper (or after reading some *insert book*) though *with the biggest smirk on your face* (C&F, DHV, opportunity for time-bridge)
HB: You think your bad ass like those guys on tv?
YOU: Hahaha. Wow! If you think those guys are bad ass, you really need to get your life outta the tv and into the world, maybe some books, or hobbies (say something specific like hiking, or male ice skaters, or mention a specific book--to which you can easily set up a 2nd meeting, lend her the book, etc.). (Neg)
HB: You gamble for a living?
YOU: *slightly modifying the above response* There's a difference between addiction and recreation. I gamble for fun, and I think everyone needs fun in their life. That's why you were destined to meet me

Stack into something and set up another meeting.
Just keep whatever you say fun and playful, and make sure you set yourself up to move on with conversation and not get hung-up with the shit-test.