I've said both of these before, but I love how playful she is with moving her model, and I love how karaoke with her feels like just being out at a true karaoke with everyday friends, and less like "let me be a performer and show off my singing skills because it's part of my job."
Obviously she's taking lessons, has gotten better, and has some songs to show that off, but it's not the focus most of the time. It's just fucking fun and I love it.