When preparing a fruit cocktail demo, it is essential to select a variety of fresh and colorful fruits. Ensure that the fruits are ripe and cut them into bite-sized pieces for easy consumption. A good combination may include strawberries, pineapples, grapes, and kiwis. To enhance the flavor, consider adding a splash of citrus juice or a drizzle of honey. Lastly, serve the fruit cocktail in a clear glass to showcase the vibrant colors and appeal to the visual senses.