If you're traveling unexpectedly, you might not have time to plan your dining itinerary. So, how can you be sure the random restaurant you select will hit the spot? One of the best indications is a full parking lot. If others are piling in to eat, chances are the food is good. Take a mental inventory of your surroundings, too. Is the entrance well maintained? When you walk in, does it smell good and are you greeted right away? If you answer yes to these questions, chances are the owners take pride in their establishment, from the front door to the kitchen floors. But don't just assume it's kosher -- all restaurants are required by law to display their health inspection report near the entrance, so take notice of the restaurant's grade to confirm you've made a good choice.