Energy
What exactly is an energy person? You think in terms of basketball there's always that one guy or girl that is flying around the court throwing their body on the ground trying to get every loose ball or every rebound. If you think about a dance floor there's always that one person that shows out a bit more than the others around.
Why is that? Have you ever wondered that? Some of us are just wired to be full of energy and full of life. And some of us really have to work at it to ride that energy and bring that fire day in and day out.