It starts when you walk in the door, a wall of lockers that you and your kids can tag with a Sharpie all middle-school style, scrawling your name or a peace sign or whatever your poison is. At the host stand, they'll hand you the kids menus, a veritable activity book that will let your progeny get crazy with crayons while you yourself can dive right into a frozen cocktail or ancho chile Pimm's Cup at the full bar, which also specializes in bourbon, beer and boozy milkshakes as well. The great family appeal of Bernie's Burger Bus is vast. You'll find it in the menu, which rocks juicy burgers, housemade lemonade and crazy-good sweet potato fries. You'll find it in the bright yellow school bus that rode right out of 1986 and into this Heights eatery to house the kitchen. And most certainly you'll see it in the lingering smiles of your kids as they drift off to sleep on the ride home, exhausted from an epic meal and probably with some milkshake left to enjoy later.