There is no psychiatrist in the world like a puppy licking your face.
-Ben Williams
If your dog has a tendency toward being overweight and you feed free-choice (leaving the bowl of food out all the time), it may be time to put him on a feeding schedule so that he is not grazing all day. Most dogs do well on twice a day feeding. Divide the daily recommended amount of food into two feedings. Placing it out in the morning and evening. If your dog loses interest in the food for 15 minutes or more, pick it up.