Okay, let's see...
Mary Beth told Kari to put her foot in the pan of water for a few seconds, which she did. She then took it out and wiped the boot off with a towel. Then, Mary Beth told her to take off her boot to show the sock she was wearing was still dry. She seemed kind of hesitant (I wonder why?) and only unzipped it and opened it up. "No, take it off so we can see your foot," Mary Beth said. Kari did and felt her foot (she was wearing white socks with gray heels and toes). Mary Beth said, "I'm going to come over and feel your foot." Then Mary Beth's hand came into view and fondled Kari's foot. "It's dry!" she exclaimed. Then she scrabbled her fingers over Kari's arch. "Tickletickletickle!" Kari's foot wiggled vigorously and Mary Beth laughed. "You get a tickle for being on the show!" she said as Kari's foot continued to wiggle.
Earlier that day, the same demonstration occured with a different hostess(I think it was Christa Pitts)and a different model. She didn't get tickled, but Christa was like, "Ooh, I got to feel your foot! How exciting!"
I don't know when Lisa tickled Kari. As I said, I didn't see it. Kari is tall and has long wavey blond hair, if I remember correctly.
Hope this helps.