#4: Loose Lips Sink Ships… and Ruin Auditions
You’re never too young to learn about the importance of professionalism in the workplace. Hollywood may seem big, but in reality, it’s a relatively small world, and you never know who knows who. This is a lesson Daniel Radcliffe learned early on in one of his very first auditions.

While the experience deterred Daniel for a bit, eventually, he mustered up the courage to go in and read for Harry Potter, and we know how well that turned out for him. He learned his lesson, though, as he is said to be amongst the kindest and most professional people in the industry. According to him, he abides by one rule in approaching his career: have a positive attitude and be kind to everyone on set.