You’ve seen that peppy woman with the new job, recent diploma, and big success. She seems like the world is on her side… because it is. Some may ask, “Which came first, the optimism or the confidence?”

You guessed right—it’s definitely the optimism.

Yes, sometimes you’ll have to fake the “this-meeting-ROCKS” smile. Just try not to be the person who sports the “I-hate-my-job” face. We all have bad days; evil Murphy’s Law haunts some of us more than others, and every week has a Monday. The good news is that you can overcome that exhausting pessimism, and there’s good reason to: It’s well documented that optimistic people are happier, healthier, live longer, and make better leaders.

And optimistic businesswomen? Well, they succeed. They start businesses. They lead. They get promoted. Here’s why:

Optimists are influencers.

They’re energetic and persuasive. Happy people draw others in. We want to sit near those people. Your boss will notice when your crowd of followers grows large; your Klout score will increase, and your social media sites will see more action as your influence grows. Your network will expand. Use these connections wisely, as they often produce jobs leads, opportunities, and yes, promotions.

Optimists have confidence.

And you can develop this confidence. Maria Shriver lists Eight Ways to Cultivate Optimism and Confidence.

Optimists try new things.

They celebrate with excitement like Ivanka Trump at a Chinese New Year celebration. This applies to their business decisions as well. Experimenters find new solutions, create, and add value.

Optimists volunteer, care, and have ethical, civic, and business goals.

Servant leadership, according to Investopedia, is making sure that other people’s highest priority needs are being served. An altruistic management style speaks volumes about one’s personality in a competitive business environment. These are type of people who run teams and companies well.

Optimists spread great ideas.

We learn well from them. Women in teaching or instructional roles who flourish with optimism will not only teach their students more, but will quickly take on leading instructional roles for their group. Bill and Melinda Gates, whose foundation is coincidentally called Impatient Optimists, recently urged us to reclaim the “Art and Science” of teaching.

The people who complain that the world is all messed up aren’t the ones out there trying to fix it. Activists are optimists. They are creative people. And creative people yearn to improve the world through their art, whatever their art may be.

When has being optimistic served you in your career? Tell us in the comments!

Build Confidence with Optimism