You can marinate a steak if you want. Stab holes in it and put it in a Ziploc bag with a bunch of bullshit and leave it in the fridge overnight. But I've always found that to be a bit extraneous. Mainly because I want my steak to taste like steak. If you purchase a halfway respectable cut of meat from the butcher or grocery store, all you need to do is molest it with sea salt and crushed black pepper, ground with the pepper grinder you felt gay buying at Bed, Bath and Beyond.