A tape of Tibetan bells, or the sacred trance music from almost any culture, will give an important energy boost and give you both something to focus your conscious minds on. Other than the minimum communication for guidance in lighter or heavier touch, or for changes in position and other mechanics of the massage, it is a good idea to avoid talking most of the time. Massage was the occupation for the blind in old Japan, and you may find it much easier to focus on your hands, and the energy flow, if you keep your eyes closed. If it is warm enough, leave a window open to let in fresh air. If not, air the room thoroughly before the massage.
Some people enjoy candlelight and incense or burning herbs.
Have a clean soft sheet or large towel for the person to lie upon, and another to cover up with. A soft cotton blanket is also good as a cover. The receiver will become much cooler as they relax and let go of muscle tension, so it is important to cover them to keep them warm enough. The giver will be doing the physical work so will be more comfortable if the room is on the cool side. Both the giver and receiver can be clothed, nude or anywhere in between according to their own comfort levels.