I have girls ask me this randomly when our convo dies down a bit. I usually have a hard time coming up with something funny or "happy/exciting" to say.

Any ideas?

Any stores I could tell?

dunno bout stories or anything but wouldnt an easy quick response be something like

"the fact that you're still interesting enough for me to talk to?"

work?

Here's where game transitions to natural game. Have stories about yourself that captivates girls attention. Something in your life that you know nobody else has done.

I have stories about being called an ass by Matthew Broderick, being on a reality TV show, even if I wasn't a contestant. Find out what she is into, or ask her something like "what's the craziest thing you've ever done" and build off it. Try to tie her interests into yours, and stack forward and prep your next story. Be enthusiastic and descriptive. Don't say "I went bungie jumping" say "I was with my friends and we were all planning on bungie jumping and I was kind of scared at first because I didn't know what to expect and I had a fear of falling, but getting over that fear was such a rush, letting go you feel such a huge flow of adrenaline and your heart starts pumping." convey emotion in your stories she will want to feel the experience through your story. Make them real life stories and you will be able to tell them so much better than canned material.