Pour the chilled Sprite into a tall glass, filling it about two-thirds full.
Add crushed ice to the glass, filling it halfway to create a chilled base with a frosty appearance.
Sprinkle lemon juice over the ice, giving it a bright, citrusy aroma that begins to infuse the mixture.
Use a spoon or straw to gently stir the mixture, combining the lemon’s tang with the fizzy Sprite and chilling the ice further.
Allow the mixture to sit for about 30 seconds so the flavors meld and the ice starts to absorb the soda's coldness.
Stir the mixture again briefly, ensuring the crushed ice is evenly distributed and the drink has a frosty, slushy consistency.
Insert a straw, then serve immediately to enjoy the icy, bubbly texture with bursts of citrus flavor.