That depends on the Satanism. I'm a Modern Church of Satanist/ mixed with Luciferian Vampire -not worshipper but we types are our own gods. Demonolaters make deals or pacts for certain things from certain demons. Some Demonolators are Spiritual Satanists such as Venus Satanas. LaVeyans are more Humanist and non- Theistic, most not believing in an anthropomorphic Satan. Others are Theistic such as Brotherhood of Satan and may worship. Even further in variation is the Luciferian Vampire type of Satanist who may be either Theist or Atheist but utilizes archetypal concepts such as put forth by Michael W. Ford.

I hope that helps.