How is that some people seem so self-assured all the time? They take command or a meeting or ask for what they need with such admirable confidence. Sometimes you wonder if they were just born that way.

Turns out, that’s not the case. As Stephanie Vozza shares in a recent article for Fast Company, confidence is an emotion that can be controlled. She also shares several actions we can put into practice in order to be our most confident selves.

Perhaps the easiest change you can make is taking self-affirmations seriously. Don’t inflate your ego, but don’t shortchange your abilities either. The moment you begin to express self-doubt is the moment you stoop to meet that expectation. If you’re prepared and ready to give it your best shot, remind yourself that you are smart enough, talented enough, and (depending on the situation) brave enough to proceed with the task at hand.

In a similar vein, don’t fall victim to “imposter syndrome”— attributing your success to things wholly out of your control. If you put in a good performance take a moment to be mindful of your internal feelings. It’s OK to feel good. That’s all because of your hard work, not dumb luck.

Her other tips include the classic recommendation for mediation, and emptying your find of negative thoughts that can stress you out. But a really interesting tip has to do with your body. No, it’s not exercise, though that certainly helps too. She recommends the practice of taking up physical space. Sitting and standing up straight, as well as doing some intensive stretching, can work wonders for your body chemistry.

You can follow Stephanie Vozza on Twitter, @StephanieVozza.