If you have been physically active with any degree of regularity, you should start to see the results of all your hard work today. People are noticing the change in you, and while not everyone is going to say something to you about it, someone will: and that someone will make your day! Try to return the favor by tossing out compliments as much as you can today, too. Notice someone's great new haircut? Say something to them about it. The more you flatter folks, the happier you'll feel.