We are always making a choice, no matter what. Not only is every action you take a choice, but not doing something is also a choice. There is a great quote from Stephen Covey: "Leadership is a choice, not a position."
No matter your role—whether you're a CEO or an intern—you have the choice every day to be a leader. Especially if you're working in a startup, there are countless opportunities to step up and make a 10X impact.