Click the house icon to build stores. (Tip: The more people you can serve, the more money you'll make). Click the bench icon to build items to slow the shoppers down. (Tip: Newsstands and ice-cream stands also make you money.) When you're ready to begin the next day, click the hourglass. You can click to speed up the game too. If you click on an item you've built, you can see the sales or upgrade options. (The longer you've had a store, the less money you can get for selling it.) Make the target amount of money (fill up the "Goal" bar) within the number of days allowed.