Beltane is opposite Samhain on the Wheel of the Year, and this full moon, so close to Beltane, is excellent for scrying.
Use a scrying mirror or a dark bowl filled with water. Safely light a purple candle and lilac incense. Turn out the lights in the room and close the curtains. Make sure you will not be interrupted for at least thirty minutes.
Follow your breath to relax.
Focus softly on the scrying tool. Breathe. Let the images form in the glass or water. If you have a specific question, ask it. Otherwise, simply observe.
When the images fade, write them down in your magical journal before you forget, then extinguish the candle (or let it burn down). Ground by placing your palms on the earth. Feel any excess energy flow out, and the stability of the earth beneath you. Pour out the water somewhere outside.
Attune to any dreams or experiences that connect to the images, and meditate on them for interpretation.