Where I come from we just take the meat of the fruit and blend it with milk or water (and yes, we call that juice), I you have never try it, go get a ripe mango, blend it with milk and you’ll have a delicious smootie, you can use water but imh milk is superior for that use case.
Of cours that is no possible with oranges for example, but there a aloooooot mor fruits than oranges.
If you ever have the oportunity to have some guayaba-milk-juice, don’t pass it up, the shit is the nectar of the gods.