Take a flashlight and scour the woods for some werewolves. Make sure you bring oil of wolfs bane. If you don't know what that is start a forum.
Option 2. Night exploring
Basically hike through the woods for fun or find some other supernatural critters
Option 3. Meditating. BORING
You all know what meditating means
Option 4. Powerful spell casting
The full moon is the best time to cast spells. Experiment!
Option 5. Make up some spells
Time to get creative. Try making new potions and spells.