This list is from WebMD. Here's a brief summary from the site's article!
Tip No. 1: Drink plenty of water or other calorie-free beverages.
Tip No. 2: Be choosy about nighttime snacks.
Tip No. 3: Enjoy your favorite foods.
Tip No. 4: Eat several mini-meals during the day.
Tip No. 5: Eat protein at every meal.
Tip No. 6: Spice it up.
Tip No. 7: Stock your kitchen with healthy convenience foods.
Tip No. 8: Order children's portions at restaurants.
Tip No. 9: Swap a cup of pasta for a cup of vegetables.