Scrying is a form of divination which can be done a number of different ways, but most people would be familiar with the popular image of scrying- a witch or gypsy with hands poised over a crystal ball. Although a crystal ball is most commonly used for scrying, any smooth surface can be used including polished crystals, black mirrors, and even a bowl of water (to name a few).
In order to scry, it helps to put yourself into a trance-like state. You can do this by clearing your mind in a similar fashion to how you would if you were to begin meditating. Next focus your gaze and attention on your chosen medium for scrying, whether it be a crystal ball or bowl of water under the full moon light. It may help to unfocus your eyes. Think about the question you want an answer to and let the images form in front of you. Say, out loud, any images you see, whether they make sense to you or not. If you are on your own, you may want some form of voice recorder present so that you can listen back once you have returned from your trance state.
If you are new to scrying, be patient, it can take some practice. Don’t worry if the messages/visions don’t make much sense to you at first, this is a form of divination that takes time to develop. You may find it useful to keep a journal of visions if you can recall them afterwards. In time you can go back and study these images/messages and see if you have formed associations to them.
If you find one medium of scrying is not working for you, then try another. I prefer using a black polished scrying disk. I have one the size of a bread and butter plate, and a smaller one that I wear on a chain (it is made of onyx) that is handy for scrying on the go, this is my preferred medium for scrying. I suggest you try a few out and see what works best for you.
NB: My advice when it comes to any form of divination is to first ask yourself if you really want to know the answer to a question. Remember that sometimes some news can be hard to hear. Choose carefully what you tell people if you are doing a reading for them, they may think they want to know the answer to something, when in reality the answer may be hard for them to hear and/or comprehend. Divination should be taken seriously and treated with respect, and should never just be ‘dabbled’ in.