So, what you should do is find a clear, warm night to do this on. Take a pillow and a blanket out to your driveway, and lay everything out so you can get comfortable. Get tucked in, lay your head down, and pick a star that stands out to you. Maybe find your favorite constellation, or one close to the moon. Whichever you pick, keep your eyes on it.
Focus only on this star. Stare at it until the rest of the sky goes black, leaving any shimmering dots to disappear. The star will seem to brighten, and you may feel like there is a tunnel connecting you to this amazing little light. I sometimes get teary-eyed at this point, simply because it is so emotional and amazing to connect with things like stars. If you find yourself having this moment, let it happen. It shows that the stars have unique and wonderful qualities that we can all appreciate.
Look deeper into the stars light and formulate a question or desire you may have. Get into your usual scrying state, and scry. Do your thing as you would with fire, water, or a black mirror, and let the stars reveal what they can. Take a notebook or journal and write down what you say and experienced, and then translate it to an answer to your problem/question. I would also write how effective star scrying was for you personally, and if it was better than other methods you’ve tried. This way, you have a documentation of your experience and can decide if you want to do it again in the future.
That’s about it :) It’s easy, fun, and feels completely amazing ^_^