2. Eat slowly at meals. Most of us eat so quickly that we don't give our bodies enough time to tell us when we're full (which requires a lot less food than we think).

3. Drink lots of water. Often we mistake hunger for thirst. You will be shocked how often dehydration is the cause of your appetite. Nature's appetite suppressant.

4. Chew gum. You may simply have an oral fixation.

5. If all else fails, bring a bag of celery, sliced cucumbers, carrots, apple wedges, or the like along with you. These foods require more calories to digest than they actually contain. You can literally eat them all day (though I wouldn't recommend doing so with carrots, lest you turn orange).