A signature strength is a characteristic that you are not only naturally good at, but that makes you feel good when you exercise it. For example, my top signature strength is Love Of Learning. I am naturally curious and I am good at learning, and it actually makes me happy to learn new things.
Anyway, The Chief Happiness Officer had a great little mission for his readers: A seven-step process to discover your signature strengths and exercise them at work in order to be happier at while you're on the job. A worthy mission! Here's a link to the article and one of the seven steps:
Monday Tip: Use your strengths at work: "What strengths do you rarely or never use at work? These represent untapped potential for you and your workplace. Is there any way you could get to use them more often?"