Cocktail garnishes are decorative elements added to drinks to enhance their appearance and flavor. Common garnishes include lemon twists, lime wedges, cherries, and olives. They not only make cocktails visually appealing but can also complement the drink's taste, adding a hint of citrus or sweetness. Garnishes can vary widely depending on the type of cocktail. For example, a Mojito might be garnished with fresh mint leaves, while a Martini often features an olive or a lemon peel. The choice of garnish can reflect the drink's ingredients and the bartender's creativity.