To coat the rim of the glass with sugar, or cinnamon sugar: Place about 1/2 cup raw sugar on a plate. Sprinkle on 1 teaspoon cinnamon and mix. Make sure the sugar mixture doesn't spread out. Shake the plate so it makes a solid dipping platform. On another plate, add water. Turn the glass upside down in the water and then place it in the sugar mixture. If it doesn't coat evenly, just shake the plate again, rotate glass and dip again.