To wear this shirt, simply put it on over your upper body. It's great for casual outings, like hanging out with friends or running errands. When it comes to care, you can machine - wash it in cold water with like colors. Avoid using bleach as it may fade the star decorations. After washing, tumble dry on low to keep the fabric in good shape. Before buying, always double - check the size chart to make sure you get the right fit. Since different suppliers may have different sizing, taking this extra step will save you from any sizing issues.