You can do completely tool-free magic, where props are not necessary. The thread below might help. Also, you don’t need to speak aloud if you don’t have the privacy to do so.
I’d recommend getting familiar with a banishing/cleansing ritual first, like the Lesser Banishing Ritual of the Pentagram (LBRP). If you search the forum or the internet you will find a lot of information on how this is done. If you’re worried about privacy/being filmed, you can do it “astrally” (i.e. in your imagination), or if anyone asks about it, explain that you’re doing yoga or calisthenics or something.
Also note regarding Satan; Satan is generally considered to be a mask/title/mantle which coves a handful of different entities. This is my personal experience and I would hazard a guess that it’s the experience of a lot of other people, too. There could also be an egregoric/thoughtform version of Satan, which isn’t really guaranteed to have any power or influence.
You may also want to search this forum for the “seal of manifestation” and print or draw a copy and have it nearby, to keep imposter spirits out.