Other fruit juices: You can mix it with other fruit juices, like orange juice, pineapple juice, or mango juice, to create a tropical fruit blend. Sweeteners: If the juice is too tart, you can sweeten it with honey, agave syrup, or sugar. You can also use sugar-free substitutes like stevia or monk fruit. Herbs and spices: Add a few sprigs of mint or basil or a dash of cinnamon or ginger to give the juice a subtle, refreshing flavor. Carbonated water: Mix it with carbonated water or soda for a refreshing twist. Alcohol: You can also turn passionfruit juice into a cocktail by adding rum, vodka, or tequila. Coconut milk: Adding coconut milk to this juice can create a creamy, tropical flavor.