"I usually dress very casual. Whenever I go out with my friends, I'm always like, 'Can't I just wear sweatpants?'"

Natalie Portman's quote suggests that she prefers to dress casually and is not a fan of dressing up. She expresses her desire to use sweatpants when going out with her good friends, which suggests that she is not a fan of dressing up for get-togethers. This might be because she is comfortable in casual clothing, or due to the fact that she does not want to put in the effort to dress up. It might likewise suggest her easygoing mindset and her preference for comfort over style. Her quote also recommends that she is not a fan of following style trends, as she would rather wear sweatpants than something more fashionable. Overall, Natalie Portman's quote reflects her choice for convenience and casual clothing over dressing up for get-togethers.