I'll let them know you liked their cake, they'll be happy to hear that. 'sides I'm also glad you liked it, always good to hear I could make someone smile. Just don't tell the elves or they might try and kidnap my mum or something, because they think she's like...a competitor!
I can tell you Quidditch is the best sport in the world. It has brooms and balls and it's fun! And believe me, I have to know!