Technically a floor show means live, cabaret-style entertainment. And we certainly enjoy the belly dancer who prances around Kasbah, shaking her groove thang along with sequins and spangles. But the real floor show at this tentlike restaurant -- draped from floor to ceiling with silken, brilliantly hued fabric -- is provided by the customers, many of whom are unfamiliar with traditional Moroccan décor and cuisine. We've never seen so many people squirm on the decorative pillows, the only cushions between them and the rugs, and eat carrot-raisin salad and Cornish hen pastry with their fingers (which, by the way, you can lick if you don't feel like wiping them on the thick, white towel the waiter has draped over your shoulder). We appreciate even more the hand-washing rituals: warm water poured from a silver pot at the beginning of the meal, rose-and-orange-blossom waters sprinkled over your digits at the conclusion. The visuals in this place are just as authentic, and some of them as aromatic, as the steaming mint tea and fish tagine.