How does model and college co-ed Alissa White keep herself in stunning shape? Try scaling up the side of a mountain. We're not exactly sure how hiking up California's peaks jibes with Alissa's professed love of sleeping, unless there's a sleeping bag in her backpack. Alissa's also a runner -- no surprise, since she says she failed her driver's test five times. If you're lucky enough to date her, our suggestion: Go for a walk!