Name a popular non-alcoholic mixer used in cocktails.

Ginger ale is a popular non-alcoholic mixer widely used in cocktails for its unique flavor and effervescence. It adds a bubbly, sweet component to drinks, making it a versatile choice. Ginger ale complements a variety of spirits and flavors, enhancing the overall taste of a cocktail without overpowering it.

While orange juice is also a frequently used mixer, it is more of a juice than a carbonated mixer and serves a different purpose in cocktails. Whipped cream, on the other hand, is more of a garnish than a mixer and is typically used in dessert-style drinks. Coconut water, though gaining popularity as a mixer for lighter, tropical drinks, is not as commonly recognized in classic cocktail recipes as ginger ale.