Most people practice magick in one form or another, they just do it unconsciously. For example, many people think about how stupid and unlovable they are, how everyone hates them and they visualize situations where they are abused or hurt by others and keep playing such mental movies in their mind until they manifest into reality. That's magick used in an unconscious and self-destructive way, but it's still magick.
But even people who do use magick consciously don't realize it. For example, xians who pray and it manifests, they use the powers of their minds but they externalize it to their "god". New agers who practice "manifesting" using the law of attraction also use magick, and a very popular, but watered down form. The book "The secret" has sold like 30 million copies and it's about this form of magick.
Magick is simply using the power of your mind. The difference between us Zevist and mainstream new agers is that we use it consciously, we study inner workings and learn how to maximize its effects using astrological timing, runes, vibrations e.t.c. so it becomes more effective. We are also taught more advanced forms.
BTW, we don't use the name Satan any more (we call him Zeus, as we try to get rid of all Judeo-Christian influence and return to our Pagan roots), and it's called "magick" to distinguish it from "magic" which is a just illusion party tricks, like making coins disappear. The name comes from the 16th century spelling and was popularized by Aleister Crowley.