
First, ensure you have a surface sufficient for your needs, a comfortable height, and neither too large nor too small. It is usual to cover this with a cloth which protects the surface from accidental spills and denotes the change of use.
On this place symbols of the Elements; incense for Air, a candle for Fire, a dish of Water for water, and Salt for Earth. Usually these are placed approximately in their compass positions, although the candles should always be placed so you can avoid reaching over them.