A local restaurant has a sign that reads "If you don't like your meal, tell us. If you do, tell your friends." Basically asking that you let them know when things aren't right instead of just complaining to your friends and spreading the word when you're happy with the meal.
God feels the same way. He wants to hear that you appreciate what He's done for you. He wants you to tell others. That's pretty much what it's all about - giving God the glory.