If you are a writer, you write.
If you are a runner, you run.
If you are happy, you smile.
If you write, you are a writer.
If you run, you are a runner.
If you smile, you are happy.
If you want to be a writer, write.
If you want to be a runner, run.
If you want to be happy, smile.
It really is that simple. We can't control our thoughts, but we can control our behaviour. And our behaviour exerts a powerful influence on our feelings over time. If I've learned anything over the past two years, it is this: if you seek true happiness, then smile. It is as simple as that.