Shave or crush the ice. NB: If you have a purpose made ice shaver, just follow the operating instructions provided to shave the ice. If you don't own an ice shaver, let ice cubes temper at room temperature for a few minutes, then add them to a food processor or blender. Pulse or blend until finely, but not too finely, crushed.
Spoon the shaved ice in a tall glass or, if you prefer, a dessert bowl.
Drizzle over the syrup and/or fruit juice, to taste.