Preparing your body for a tattoo session is very important to ensure that you have a good experience. Get lots of rest, eat a light meal, drink lots of fluids before you come in. If your tattoo will take more than an hour, consider packing some headphones in case you aren’t a fan of the music and need to zone out. If you will be sitting for more than a couple of hours, dress comfortably and bring a pillow. You might find yourself stuck in one position for a long time, so try to make your time as comfortable as possible.
I have no problem with drinks (non-alcoholic) or snacks being consumed in my room, I want you to have a positive experience. Make yourself at home.